diff --git a/models/user/setting.go b/models/user/setting.go
index c65afae76c84f..21b8aa8f7767e 100644
--- a/models/user/setting.go
+++ b/models/user/setting.go
@@ -15,6 +15,7 @@ import (
 	"code.gitea.io/gitea/modules/util"
 
 	"xorm.io/builder"
+	"xorm.io/xorm"
 )
 
 // Setting is a key value store of user settings
@@ -211,3 +212,17 @@ func upsertUserSettingValue(ctx context.Context, userID int64, key, value string
 		return err
 	})
 }
+
+// BuildSignupIPQuery builds a query to find users by their signup IP addresses
+func BuildSignupIPQuery(ctx context.Context, keyword string) *xorm.Session {
+	query := db.GetEngine(ctx).
+		Table("user_setting").
+		Join("INNER", "user", "user.id = user_setting.user_id").
+		Where("user_setting.setting_key = ?", SignupIP)
+
+	if len(keyword) > 0 {
+		query = query.And("(user.lower_name LIKE ? OR user.full_name LIKE ? OR user_setting.setting_value LIKE ?)",
+			"%"+strings.ToLower(keyword)+"%", "%"+keyword+"%", "%"+keyword+"%")
+	}
+	return query
+}
diff --git a/modules/util/network.go b/modules/util/network.go
new file mode 100644
index 0000000000000..e918f4a7ddfe6
--- /dev/null
+++ b/modules/util/network.go
@@ -0,0 +1,32 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package util
+
+import (
+	"strings"
+)
+
+// TrimPortFromIP removes the client port from an IP address
+// Handles both IPv4 and IPv6 addresses with ports
+func TrimPortFromIP(ip string) string {
+	// Handle IPv6 with brackets: [IPv6]:port
+	if strings.HasPrefix(ip, "[") {
+		// If there's no port, return as is
+		if !strings.Contains(ip, "]:") {
+			return ip
+		}
+		// Remove the port part after ]:
+		return strings.Split(ip, "]:")[0] + "]"
+	}
+
+	// Count colons to differentiate between IPv4 and IPv6
+	colonCount := strings.Count(ip, ":")
+
+	// Handle IPv4 with port (single colon)
+	if colonCount == 1 {
+		return strings.Split(ip, ":")[0]
+	}
+
+	return ip
+}
diff --git a/modules/util/network_test.go b/modules/util/network_test.go
new file mode 100644
index 0000000000000..e254c9d23a015
--- /dev/null
+++ b/modules/util/network_test.go
@@ -0,0 +1,66 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package util
+
+import (
+	"testing"
+
+	"github.com/stretchr/testify/assert"
+)
+
+func TestTrimPortFromIP(t *testing.T) {
+	tests := []struct {
+		name     string
+		input    string
+		expected string
+	}{
+		{
+			name:     "IPv4 without port",
+			input:    "192.168.1.1",
+			expected: "192.168.1.1",
+		},
+		{
+			name:     "IPv4 with port",
+			input:    "192.168.1.1:8080",
+			expected: "192.168.1.1",
+		},
+		{
+			name:     "IPv6 without port",
+			input:    "2001:db8::1",
+			expected: "2001:db8::1",
+		},
+		{
+			name:     "IPv6 with brackets, without port",
+			input:    "[2001:db8::1]",
+			expected: "[2001:db8::1]",
+		},
+		{
+			name:     "IPv6 with brackets and port",
+			input:    "[2001:db8::1]:8080",
+			expected: "[2001:db8::1]",
+		},
+		{
+			name:     "localhost with port",
+			input:    "localhost:8080",
+			expected: "localhost",
+		},
+		{
+			name:     "Empty string",
+			input:    "",
+			expected: "",
+		},
+		{
+			name:     "Not an IP address",
+			input:    "abc123",
+			expected: "abc123",
+		},
+	}
+
+	for _, tt := range tests {
+		t.Run(tt.name, func(t *testing.T) {
+			result := TrimPortFromIP(tt.input)
+			assert.Equal(t, tt.expected, result)
+		})
+	}
+}
diff --git a/options/locale/locale_en-US.ini b/options/locale/locale_en-US.ini
index 54089be24a1c2..b342e66c4b599 100644
--- a/options/locale/locale_en-US.ini
+++ b/options/locale/locale_en-US.ini
@@ -3088,6 +3088,16 @@ users.list_status_filter.is_2fa_enabled = 2FA Enabled
 users.list_status_filter.not_2fa_enabled = 2FA Disabled
 users.details = User Details
 
+ips.ip = IP Address
+ips.user_agent = User Agent
+ips.ip_manage_panel = Signup IP Management
+ips.signup_metadata = Signup Metadata
+ips.not_available = Signup metadata not available
+ips.filter_sort.ip = Sort by IP (asc)
+ips.filter_sort.ip_reverse = Sort by IP (desc)
+ips.filter_sort.name = Sort by Username (asc)
+ips.filter_sort.name_reverse = Sort by Username (desc)
+
 emails.email_manage_panel = User Email Management
 emails.primary = Primary
 emails.activated = Activated
diff --git a/routers/web/admin/ips.go b/routers/web/admin/ips.go
new file mode 100644
index 0000000000000..3ba605630388c
--- /dev/null
+++ b/routers/web/admin/ips.go
@@ -0,0 +1,104 @@
+// Copyright 2025 The Gitea Authors. All rights reserved.
+// SPDX-License-Identifier: MIT
+
+package admin
+
+import (
+	"net/http"
+
+	user_model "code.gitea.io/gitea/models/user"
+	"code.gitea.io/gitea/modules/setting"
+	"code.gitea.io/gitea/modules/templates"
+	"code.gitea.io/gitea/modules/util"
+	"code.gitea.io/gitea/services/context"
+)
+
+const (
+	tplIPs templates.TplName = "admin/ips/list"
+)
+
+// IPs show all user signup IPs
+func IPs(ctx *context.Context) {
+	ctx.Data["Title"] = ctx.Tr("admin.ips.ip")
+	ctx.Data["PageIsAdminIPs"] = true
+	ctx.Data["RecordUserSignupMetadata"] = setting.RecordUserSignupMetadata
+
+	// If record user signup metadata is disabled, don't show the page
+	if !setting.RecordUserSignupMetadata {
+		ctx.Redirect(setting.AppSubURL + "/-/admin")
+		return
+	}
+
+	page := ctx.FormInt("page")
+	if page <= 1 {
+		page = 1
+	}
+
+	// Define the user IP result struct
+	type UserIPResult struct {
+		UID      int64
+		Name     string
+		FullName string
+		IP       string
+	}
+
+	var (
+		userIPs  []UserIPResult
+		count    int64
+		err      error
+		orderBy  string
+		keyword  = ctx.FormTrim("q")
+		sortType = ctx.FormString("sort")
+	)
+
+	ctx.Data["SortType"] = sortType
+	switch sortType {
+	case "ip":
+		orderBy = "user_setting.setting_value ASC, user.id ASC"
+	case "reverseip":
+		orderBy = "user_setting.setting_value DESC, user.id DESC"
+	case "username":
+		orderBy = "user.lower_name ASC, user.id ASC"
+	case "reverseusername":
+		orderBy = "user.lower_name DESC, user.id DESC"
+	default:
+		ctx.Data["SortType"] = "ip"
+		orderBy = "user_setting.setting_value ASC, user.id ASC"
+	}
+
+	// Get the count and user IPs for pagination
+	query := user_model.BuildSignupIPQuery(ctx, keyword)
+
+	count, err = query.Count(new(user_model.Setting))
+	if err != nil {
+		ctx.ServerError("Count", err)
+		return
+	}
+
+	err = user_model.BuildSignupIPQuery(ctx, keyword).
+		Select("user.id as uid, user.name, user.full_name, user_setting.setting_value as ip").
+		OrderBy(orderBy).
+		Limit(setting.UI.Admin.UserPagingNum, (page-1)*setting.UI.Admin.UserPagingNum).
+		Find(&userIPs)
+	if err != nil {
+		ctx.ServerError("Find", err)
+		return
+	}
+
+	for i := range userIPs {
+		// Trim the port from the IP
+		// FIXME: Maybe have a different helper for this?
+		userIPs[i].IP = util.TrimPortFromIP(userIPs[i].IP)
+	}
+
+	ctx.Data["UserIPs"] = userIPs
+	ctx.Data["Total"] = count
+	ctx.Data["Keyword"] = keyword
+
+	// Setup pagination
+	pager := context.NewPagination(int(count), setting.UI.Admin.UserPagingNum, page, 5)
+	pager.AddParamFromRequest(ctx.Req)
+	ctx.Data["Page"] = pager
+
+	ctx.HTML(http.StatusOK, tplIPs)
+}
diff --git a/routers/web/admin/users.go b/routers/web/admin/users.go
index e42cbb316c3e2..5ba92a0496e30 100644
--- a/routers/web/admin/users.go
+++ b/routers/web/admin/users.go
@@ -22,6 +22,7 @@ import (
 	"code.gitea.io/gitea/modules/optional"
 	"code.gitea.io/gitea/modules/setting"
 	"code.gitea.io/gitea/modules/templates"
+	"code.gitea.io/gitea/modules/util"
 	"code.gitea.io/gitea/modules/web"
 	"code.gitea.io/gitea/routers/web/explore"
 	user_setting "code.gitea.io/gitea/routers/web/user/setting"
@@ -262,6 +263,7 @@ func ViewUser(ctx *context.Context) {
 	ctx.Data["DisableRegularOrgCreation"] = setting.Admin.DisableRegularOrgCreation
 	ctx.Data["DisableMigrations"] = setting.Repository.DisableMigrations
 	ctx.Data["AllowedUserVisibilityModes"] = setting.Service.AllowedUserVisibilityModesSlice.ToVisibleTypeSlice()
+	ctx.Data["ShowUserSignupMetadata"] = setting.RecordUserSignupMetadata
 
 	u := prepareUserInfo(ctx)
 	if ctx.Written() {
@@ -291,6 +293,25 @@ func ViewUser(ctx *context.Context) {
 	ctx.Data["Emails"] = emails
 	ctx.Data["EmailsTotal"] = len(emails)
 
+	// If record user signup metadata is enabled, get the user's signup IP and user agent
+	if setting.RecordUserSignupMetadata {
+		signupIP, err := user_model.GetUserSetting(ctx, u.ID, user_model.SignupIP)
+		if err == nil && len(signupIP) > 0 {
+			ctx.Data["HasSignupIP"] = true
+			ctx.Data["SignupIP"] = util.TrimPortFromIP(signupIP)
+		} else {
+			ctx.Data["HasSignupIP"] = false
+		}
+
+		signupUserAgent, err := user_model.GetUserSetting(ctx, u.ID, user_model.SignupUserAgent)
+		if err == nil && len(signupUserAgent) > 0 {
+			ctx.Data["HasSignupUserAgent"] = true
+			ctx.Data["SignupUserAgent"] = signupUserAgent
+		} else {
+			ctx.Data["HasSignupUserAgent"] = false
+		}
+	}
+
 	orgs, err := db.Find[org_model.Organization](ctx, org_model.FindOrgOptions{
 		ListOptions:    db.ListOptionsAll,
 		UserID:         u.ID,
diff --git a/routers/web/web.go b/routers/web/web.go
index f28dc6baa4d62..dce8114ba250a 100644
--- a/routers/web/web.go
+++ b/routers/web/web.go
@@ -755,6 +755,10 @@ func registerWebRoutes(m *web.Router) {
 			m.Post("/delete", admin.DeleteEmail)
 		})
 
+		m.Group("/ips", func() {
+			m.Get("", admin.IPs)
+		})
+
 		m.Group("/orgs", func() {
 			m.Get("", admin.Organizations)
 		})
@@ -814,7 +818,7 @@ func registerWebRoutes(m *web.Router) {
 			addSettingsRunnersRoutes()
 			addSettingsVariablesRoutes()
 		})
-	}, adminReq, ctxDataSet("EnableOAuth2", setting.OAuth2.Enabled, "EnablePackages", setting.Packages.Enabled))
+	}, adminReq, ctxDataSet("RecordUserSignupMetadata", setting.RecordUserSignupMetadata, "EnableOAuth2", setting.OAuth2.Enabled, "EnablePackages", setting.Packages.Enabled))
 	// ***** END: Admin *****
 
 	m.Group("", func() {
diff --git a/templates/admin/ips/list.tmpl b/templates/admin/ips/list.tmpl
new file mode 100644
index 0000000000000..6124b59950f07
--- /dev/null
+++ b/templates/admin/ips/list.tmpl
@@ -0,0 +1,58 @@
+{{template "admin/layout_head" (dict "ctxData" . "pageClass" "admin user")}}
+	<div class="admin-setting-content">
+		<h4 class="ui top attached header">
+			{{ctx.Locale.Tr "admin.ips.ip_manage_panel"}} ({{ctx.Locale.Tr "admin.total" .Total}})
+		</h4>
+		<div class="ui attached segment">
+			<div class="ui secondary filter menu tw-items-center tw-mx-0">
+				<form class="ui form ignore-dirty tw-flex-1">
+					{{template "shared/search/combo" dict "Value" .Keyword}}
+				</form>
+				<!-- Sort -->
+				<div class="ui dropdown type jump item tw-mr-0">
+					<span class="text">
+						{{ctx.Locale.Tr "repo.issues.filter_sort"}}
+					</span>
+					{{svg "octicon-triangle-down" 14 "dropdown icon"}}
+					<div class="menu">
+						<a class="{{if or (eq .SortType "ip") (not .SortType)}}active {{end}}item" href="?sort=ip&q={{$.Keyword}}">{{ctx.Locale.Tr "admin.ips.filter_sort.ip"}}</a>
+						<a class="{{if eq .SortType "reverseip"}}active {{end}}item" href="?sort=reverseip&q={{$.Keyword}}">{{ctx.Locale.Tr "admin.ips.filter_sort.ip_reverse"}}</a>
+						<a class="{{if eq .SortType "username"}}active {{end}}item" href="?sort=username&q={{$.Keyword}}">{{ctx.Locale.Tr "admin.ips.filter_sort.name"}}</a>
+						<a class="{{if eq .SortType "reverseusername"}}active {{end}}item" href="?sort=reverseusername&q={{$.Keyword}}">{{ctx.Locale.Tr "admin.ips.filter_sort.name_reverse"}}</a>
+					</div>
+				</div>
+			</div>
+		</div>
+		<div class="ui attached table segment">
+			<table class="ui very basic striped table unstackable">
+				<thead>
+					<tr>
+						<th data-sortt-asc="username" data-sortt-desc="reverseusername">
+							{{ctx.Locale.Tr "admin.users.name"}}
+							{{SortArrow "username" "reverseusername" $.SortType false}}
+						</th>
+						<th>{{ctx.Locale.Tr "admin.users.full_name"}}</th>
+						<th data-sortt-asc="ip" data-sortt-desc="reverseip" data-sortt-default="true">
+							{{ctx.Locale.Tr "admin.ips.ip"}}
+							{{SortArrow "ip" "reverseip" $.SortType true}}
+						</th>
+					</tr>
+				</thead>
+				<tbody>
+					{{range .UserIPs}}
+						<tr>
+							<td><a href="{{AppSubUrl}}/-/admin/users/{{.UID}}">{{.Name}}</a></td>
+							<td>{{.FullName}}</td>
+							<td><a href="?q={{.IP}}&sort={{$.SortType}}">{{.IP}}</a></td>
+						</tr>
+					{{else}}
+						<tr><td class="tw-text-center" colspan="3">{{ctx.Locale.Tr "no_results_found"}}</td></tr>
+					{{end}}
+				</tbody>
+			</table>
+		</div>
+
+		{{template "base/paginate" .}}
+	</div>
+
+{{template "admin/layout_footer" .}}
diff --git a/templates/admin/navbar.tmpl b/templates/admin/navbar.tmpl
index 72584ec799cc3..1b89a965ea5d4 100644
--- a/templates/admin/navbar.tmpl
+++ b/templates/admin/navbar.tmpl
@@ -13,7 +13,7 @@
 				</a>
 			</div>
 		</details>
-		<details class="item toggleable-item" {{if or .PageIsAdminUsers .PageIsAdminEmails .PageIsAdminOrganizations .PageIsAdminAuthentications}}open{{end}}>
+		<details class="item toggleable-item" {{if or .PageIsAdminUsers .PageIsAdminEmails .PageIsAdminIPs .PageIsAdminOrganizations .PageIsAdminAuthentications}}open{{end}}>
 			<summary>{{ctx.Locale.Tr "admin.identity_access"}}</summary>
 			<div class="menu">
 				<a class="{{if .PageIsAdminAuthentications}}active {{end}}item" href="{{AppSubUrl}}/-/admin/auths">
@@ -28,6 +28,11 @@
 				<a class="{{if .PageIsAdminEmails}}active {{end}}item" href="{{AppSubUrl}}/-/admin/emails">
 					{{ctx.Locale.Tr "admin.emails"}}
 				</a>
+				{{if .RecordUserSignupMetadata}}
+				<a class="{{if .PageIsAdminIPs}}active {{end}}item" href="{{AppSubUrl}}/-/admin/ips">
+					{{ctx.Locale.Tr "admin.ips.ip"}}
+				</a>
+				{{end}}
 			</div>
 		</details>
 		<details class="item toggleable-item" {{if or .PageIsAdminRepositories (and .EnablePackages .PageIsAdminPackages)}}open{{end}}>
diff --git a/templates/admin/user/view.tmpl b/templates/admin/user/view.tmpl
index 31616ffbf969a..d5bbd81dc34ea 100644
--- a/templates/admin/user/view.tmpl
+++ b/templates/admin/user/view.tmpl
@@ -22,6 +22,14 @@
 			</div>
 		</div>
 	</div>
+	{{if .ShowUserSignupMetadata}}
+	<h4 class="ui top attached header">
+		{{ctx.Locale.Tr "admin.ips.signup_metadata"}}
+	</h4>
+	<div class="ui attached segment">
+		{{template "admin/user/view_ip" .}}
+	</div>
+	{{end}}
 	<h4 class="ui top attached header">
 		{{ctx.Locale.Tr "admin.repositories"}} ({{ctx.Locale.Tr "admin.total" .ReposTotal}})
 	</h4>
diff --git a/templates/admin/user/view_ip.tmpl b/templates/admin/user/view_ip.tmpl
new file mode 100644
index 0000000000000..b8b163a3040c7
--- /dev/null
+++ b/templates/admin/user/view_ip.tmpl
@@ -0,0 +1,18 @@
+{{if .HasSignupIP}}
+<div class="flex-list">
+	<div class="flex-item">
+		<div class="flex-item-main">
+			<div class="flex-text-block">
+				<strong>{{ctx.Locale.Tr "admin.ips.ip"}}:</strong> <a href="{{AppSubUrl}}/-/admin/ips?q={{.SignupIP}}">{{.SignupIP}}</a>
+			</div>
+			{{if .HasSignupUserAgent}}
+			<div class="flex-text-block">
+				<strong>{{ctx.Locale.Tr "admin.ips.user_agent"}}:</strong> {{.SignupUserAgent}}
+			</div>
+			{{end}}
+		</div>
+	</div>
+</div>
+{{else}}
+<div>{{ctx.Locale.Tr "admin.ips.not_available"}}</div>
+{{end}}