diff --git a/apps/server/internal/modules/notification_channel/listener.go b/apps/server/internal/modules/notification_channel/listener.go
index 622a8195..d22d8884 100644
--- a/apps/server/internal/modules/notification_channel/listener.go
+++ b/apps/server/internal/modules/notification_channel/listener.go
@@ -59,6 +59,7 @@ func NewNotificationEventListener(p NotificationEventListenerParams) *Notificati
 	RegisterNotificationChannelProvider("pushbullet", providers.NewPushbulletSender(p.Logger))
 	RegisterNotificationChannelProvider("pagertree", providers.NewPagerTreeSender(p.Logger))
 	RegisterNotificationChannelProvider("line", providers.NewLineSender(p.Logger))
+	RegisterNotificationChannelProvider("teams", providers.NewTeamsSender(p.Logger, p.Config))
 
 	return &NotificationEventListener{
 		service:                    p.Service,
diff --git a/apps/server/internal/modules/notification_channel/providers/teams.go b/apps/server/internal/modules/notification_channel/providers/teams.go
new file mode 100644
index 00000000..ea45daa4
--- /dev/null
+++ b/apps/server/internal/modules/notification_channel/providers/teams.go
@@ -0,0 +1,322 @@
+package providers
+
+import (
+	"bytes"
+	"context"
+	"encoding/json"
+	"fmt"
+	"net/http"
+	"peekaping/internal/config"
+	"peekaping/internal/modules/heartbeat"
+	"peekaping/internal/modules/monitor"
+	"peekaping/internal/modules/shared"
+	"peekaping/internal/version"
+	"strings"
+	"time"
+
+	"go.uber.org/zap"
+)
+
+type TeamsConfig struct {
+	WebhookURL string `json:"webhook_url" validate:"required,url"`
+	ServerURL  string `json:"server_url" validate:"omitempty,url"`
+}
+
+type TeamsSender struct {
+	logger *zap.SugaredLogger
+	config *config.Config
+}
+
+// NewTeamsSender creates a TeamsSender
+func NewTeamsSender(logger *zap.SugaredLogger, config *config.Config) *TeamsSender {
+	return &TeamsSender{logger: logger, config: config}
+}
+
+func (s *TeamsSender) Unmarshal(configJSON string) (any, error) {
+	return GenericUnmarshal[TeamsConfig](configJSON)
+}
+
+func (s *TeamsSender) Validate(configJSON string) error {
+	cfg, err := s.Unmarshal(configJSON)
+	if err != nil {
+		return err
+	}
+	return GenericValidator(cfg.(*TeamsConfig))
+}
+
+// getMonitorURL extracts the URL from monitor config
+func (s *TeamsSender) getMonitorURL(monitor *monitor.Model) string {
+	if monitor == nil {
+		return ""
+	}
+
+	// Try to extract URL from monitor config JSON
+	if monitor.Config != "" {
+		var config map[string]any
+		if err := json.Unmarshal([]byte(monitor.Config), &config); err == nil {
+			// Handle different monitor types
+			switch monitor.Type {
+			case "http", "http-keyword", "http-json-query":
+				// HTTP monitors have a 'url' field
+				if url, ok := config["url"].(string); ok && url != "" {
+					return url
+				}
+			case "tcp":
+				// TCP monitors have 'host' and 'port' fields
+				if hostname, ok := config["host"].(string); ok && hostname != "" {
+					if port, ok := config["port"].(float64); ok && port > 0 {
+						return fmt.Sprintf("%s:%.0f", hostname, port)
+					}
+					return hostname
+				}
+			case "ping":
+				// Ping monitors have a 'host' field
+				if hostname, ok := config["host"].(string); ok && hostname != "" {
+					return hostname
+				}
+			case "dns":
+				// DNS monitors have a 'host' field
+				if hostname, ok := config["host"].(string); ok && hostname != "" {
+					return hostname
+				}
+			}
+		}
+	}
+
+	return ""
+}
+
+// getServerURL returns the server URL to use for links
+func (s *TeamsSender) getServerURL(cfg *TeamsConfig) string {
+	if cfg.ServerURL != "" {
+		return strings.TrimRight(cfg.ServerURL, "/")
+	}
+	if s.config != nil && s.config.ClientURL != "" {
+		return strings.TrimRight(s.config.ClientURL, "/")
+	}
+	return ""
+}
+
+// getStatusStyle returns the adaptive card style based on heartbeat status
+func (s *TeamsSender) getStatusStyle(status shared.MonitorStatus) string {
+	switch status {
+	case shared.MonitorStatusUp:
+		return "good"
+	case shared.MonitorStatusDown:
+		return "attention"
+	case shared.MonitorStatusPending:
+		return "default"
+	case shared.MonitorStatusMaintenance:
+		return "default"
+	default:
+		return "default"
+	}
+}
+
+// buildAdaptiveCard builds the Microsoft Teams adaptive card
+func (s *TeamsSender) buildAdaptiveCard(
+	cfg *TeamsConfig,
+	monitor *monitor.Model,
+	heartbeat *heartbeat.Model,
+	message string,
+) map[string]any {
+	serverURL := s.getServerURL(cfg)
+	monitorURL := s.getMonitorURL(monitor)
+
+	// Determine status style
+	statusStyle := "default"
+	if heartbeat != nil {
+		statusStyle = s.getStatusStyle(heartbeat.Status)
+	}
+
+	// Build title text
+	titleText := "[Peekaping] Alert"
+	if monitor != nil && monitor.Name != "" {
+		titleText = fmt.Sprintf("[%s] Alert", monitor.Name)
+	}
+
+	// Build description - use message parameter (which corresponds to {{ description }} in template)
+	description := message
+	if description == "" && heartbeat != nil {
+		description = heartbeat.Msg
+	}
+
+	// Build facts - match exact order from template
+	facts := []map[string]string{
+		{"title": "Description", "value": description},
+	}
+
+	if monitor != nil {
+		facts = append(facts, map[string]string{
+			"title": "Monitor",
+			"value": monitor.Name,
+		})
+	}
+
+	if monitorURL != "" {
+		facts = append(facts, map[string]string{
+			"title": "URL",
+			"value": fmt.Sprintf("[%s](%s)", monitorURL, monitorURL),
+		})
+	}
+
+	if heartbeat != nil {
+		// Format time similar to heartbeat.created_at (using Time field formatted as string)
+		timeValue := heartbeat.Time.Format("2006-01-02 15:04:05")
+		facts = append(facts, map[string]string{
+			"title": "Time",
+			"value": timeValue,
+		})
+	}
+
+	// Build actions
+	actions := []map[string]any{}
+
+	if serverURL != "" && monitor != nil {
+		peekapingURL := fmt.Sprintf("%s/monitors/%s", serverURL, monitor.ID)
+		actions = append(actions, map[string]any{
+			"type":  "Action.OpenUrl",
+			"title": "Peekaping",
+			"url":   peekapingURL,
+		})
+	}
+
+	if monitorURL != "" {
+		actions = append(actions, map[string]any{
+			"type":  "Action.OpenUrl",
+			"title": monitor.Name,
+			"url":   monitorURL,
+		})
+	}
+
+	// Build adaptive card
+	card := map[string]any{
+		"$schema": "http://adaptivecards.io/schemas/adaptive-card.json",
+		"type":    "AdaptiveCard",
+		"version": "1.4",
+		"body": []map[string]any{
+			{
+				"type":  "Container",
+				"style": statusStyle,
+				"bleed": true,
+				"items": []map[string]any{
+					{
+						"type": "ColumnSet",
+						"columns": []map[string]any{
+							{
+								"type":  "Column",
+								"width": "auto",
+								"items": []map[string]any{
+									{
+										"type":      "Image",
+										"url":       "https://peekaping.com/logo-mascot.webp",
+										"size":      "Small",
+										"style":     "Person",
+										"altText":   "Peekaping",
+									},
+								},
+							},
+							{
+								"type":  "Column",
+								"width": "stretch",
+								"items": []map[string]any{
+									{
+										"type":   "TextBlock",
+										"text":   titleText,
+										"weight": "Bolder",
+										"size":   "Medium",
+										"wrap":   true,
+									},
+									{
+										"type":     "TextBlock",
+										"text":     "Peekaping Alert",
+										"isSubtle": true,
+										"spacing":  "None",
+									},
+								},
+							},
+						},
+					},
+				},
+			},
+			{
+				"type": "FactSet",
+				"facts": facts,
+			},
+		},
+	}
+
+	if len(actions) > 0 {
+		card["actions"] = actions
+	}
+
+	return card
+}
+
+func (s *TeamsSender) Send(
+	ctx context.Context,
+	configJSON string,
+	message string,
+	monitor *monitor.Model,
+	heartbeat *heartbeat.Model,
+) error {
+	cfgAny, err := s.Unmarshal(configJSON)
+	if err != nil {
+		return err
+	}
+	cfg := cfgAny.(*TeamsConfig)
+
+	s.logger.Infof("Sending Teams message: %s", message)
+
+	// Build adaptive card
+	card := s.buildAdaptiveCard(cfg, monitor, heartbeat, message)
+
+	// Create Teams message payload with adaptive card attachment
+	payload := map[string]any{
+		"type": "message",
+		"attachments": []map[string]any{
+			{
+				"contentType": "application/vnd.microsoft.card.adaptive",
+				"content":     card,
+			},
+		},
+	}
+
+	// Convert payload to JSON
+	jsonPayload, err := json.Marshal(payload)
+	if err != nil {
+		return fmt.Errorf("failed to marshal Teams payload: %w", err)
+	}
+
+	s.logger.Debugf("Teams payload: %s", string(jsonPayload))
+
+	// Create HTTP request
+	req, err := http.NewRequestWithContext(ctx, "POST", cfg.WebhookURL, bytes.NewBuffer(jsonPayload))
+	if err != nil {
+		return fmt.Errorf("failed to create HTTP request: %w", err)
+	}
+
+	req.Header.Set("Content-Type", "application/json")
+	req.Header.Set("User-Agent", "Peekaping-Teams/"+version.Version)
+
+	s.logger.Debugf("Sending Teams webhook request: %s", req.URL.String())
+
+	// Send request
+	client := &http.Client{
+		Timeout: 10 * time.Second,
+	}
+	resp, err := client.Do(req)
+	if err != nil {
+		return fmt.Errorf("failed to send Teams webhook: %w", err)
+	}
+	defer resp.Body.Close()
+
+	// Check response status
+	if resp.StatusCode < 200 || resp.StatusCode >= 300 {
+		return fmt.Errorf("Teams webhook returned status: %s", resp.Status)
+	}
+
+	s.logger.Infof("Teams message sent successfully")
+	return nil
+}
+
diff --git a/apps/web/src/app/notification-channels/components/create-edit-notification-channel.tsx b/apps/web/src/app/notification-channels/components/create-edit-notification-channel.tsx
index 74188dd5..f09d471c 100644
--- a/apps/web/src/app/notification-channels/components/create-edit-notification-channel.tsx
+++ b/apps/web/src/app/notification-channels/components/create-edit-notification-channel.tsx
@@ -44,6 +44,7 @@ import * as SendGridForm from "../integrations/sendgrid-form";
 import * as PushbulletForm from "../integrations/pushbullet-form";
 import * as PagerTreeForm from "../integrations/pagertree";
 import * as LineForm from "../integrations/line-form";
+import * as TeamsForm from "../integrations/teams-form";
 
 import { useEffect } from "react";
 import { commonMutationErrorHandler } from "@/lib/utils";
@@ -72,6 +73,7 @@ const typeFormRegistry = {
   pushbullet: PushbulletForm,
   pagertree: PagerTreeForm,
   line: LineForm,
+  teams: TeamsForm,
 };
 
 const notificationSchema = z
@@ -104,6 +106,7 @@ const notificationSchema = z
       PushbulletForm.schema,
       PagerTreeForm.schema,
       LineForm.schema,
+      TeamsForm.schema,
     ] as const)
   );
 
@@ -232,6 +235,7 @@ export default function CreateEditNotificationChannel({
                     | "pushbullet"
                     | "pagertree"
                     | "line"
+                    | "teams"
                 );
               }}
               value={type}
diff --git a/apps/web/src/app/notification-channels/integrations/teams-form.tsx b/apps/web/src/app/notification-channels/integrations/teams-form.tsx
new file mode 100644
index 00000000..7a7eb249
--- /dev/null
+++ b/apps/web/src/app/notification-channels/integrations/teams-form.tsx
@@ -0,0 +1,108 @@
+import { Input } from "@/components/ui/input";
+import {
+  FormField,
+  FormItem,
+  FormLabel,
+  FormControl,
+  FormMessage,
+  FormDescription,
+} from "@/components/ui/form";
+import { z } from "zod";
+import { useFormContext } from "react-hook-form";
+import { Alert, AlertDescription, AlertTitle } from "@/components/ui/alert";
+import { InfoIcon } from "lucide-react";
+import { useLocalizedTranslation } from "@/hooks/useTranslation";
+
+export const schema = z.object({
+  type: z.literal("teams"),
+  webhook_url: z.string().url({ message: "Valid webhook URL is required" }),
+  server_url: z
+    .string()
+    .url({ message: "Valid server URL is required" })
+    .optional()
+    .or(z.literal("")),
+});
+
+export type TeamsFormValues = z.infer<typeof schema>;
+
+export const defaultValues: TeamsFormValues = {
+  type: "teams",
+  webhook_url: "",
+  server_url: "",
+};
+
+export const displayName = "Microsoft Teams";
+
+export default function TeamsForm() {
+  const form = useFormContext();
+  const { t } = useLocalizedTranslation();
+
+  return (
+    <>
+      <FormField
+        control={form.control}
+        name="webhook_url"
+        render={({ field }) => (
+          <FormItem>
+            <FormLabel>
+              {t("notifications.form.teams.webhook_url_label") || "Webhook URL"}
+            </FormLabel>
+            <FormControl>
+              <Input
+                placeholder="https://outlook.office.com/webhook/..."
+                type="url"
+                required
+                {...field}
+              />
+            </FormControl>
+            <FormDescription>
+              <Alert>
+                <InfoIcon className="mr-2 h-4 w-4" />
+                <AlertTitle className="font-bold">
+                  {t("notifications.form.teams.setup_webhook_title") || "Setup Microsoft Teams Webhook"}
+                </AlertTitle>
+                <AlertDescription>
+                  <ul className="list-inside list-disc text-sm mt-2">
+                    <li>
+                      {t("notifications.form.teams.setup_webhook_description_1") ||
+                        "Go to your Microsoft Teams channel and click on the three dots (⋯) next to the channel name"}
+                    </li>
+                    <li>
+                      {t("notifications.form.teams.setup_webhook_description_2") ||
+                        "Select 'Connectors' → 'Incoming Webhook' → 'Configure' → Copy the webhook URL"}
+                    </li>
+                  </ul>
+                </AlertDescription>
+              </Alert>
+            </FormDescription>
+            <FormMessage />
+          </FormItem>
+        )}
+      />
+      <FormField
+        control={form.control}
+        name="server_url"
+        render={({ field }) => (
+          <FormItem>
+            <FormLabel>
+              {t("notifications.form.teams.server_url_label") || "Server URL (Optional)"}
+            </FormLabel>
+            <FormControl>
+              <Input
+                placeholder="https://peekaping.example.com"
+                type="url"
+                {...field}
+              />
+            </FormControl>
+            <FormDescription>
+              {t("notifications.form.teams.server_url_description") ||
+                "The base URL of your Peekaping instance. Used for links in notifications. If not provided, CLIENT_URL from server config will be used."}
+            </FormDescription>
+            <FormMessage />
+          </FormItem>
+        )}
+      />
+    </>
+  );
+}
+