diff --git a/API/Controller/Account/Authenticated/Logout.cs b/API/Controller/Account/Authenticated/Logout.cs
new file mode 100644
index 00000000..a330362b
--- /dev/null
+++ b/API/Controller/Account/Authenticated/Logout.cs
@@ -0,0 +1,55 @@
+using Microsoft.AspNetCore.Mvc;
+using OpenShock.Common.Authentication.Attributes;
+using OpenShock.Common.Authentication.Services;
+using OpenShock.Common.Problems;
+
+namespace OpenShock.API.Controller.Account.Authenticated;
+
+public sealed partial class AuthenticatedAccountController
+{
+    [HttpDelete("logout")]
+    [UserSessionOnly]
+    [ProducesSlimSuccess]
+    public async Task<IActionResult> Logout(
+        [FromServices] IUserReferenceService userReferenceService,
+        [FromServices] ApiConfig apiConfig)
+    {
+        var x = userReferenceService.AuthReference;
+        
+        if (x == null) throw new Exception("This should not be reachable due to AuthenticatedSession requirement");
+        if (!x.Value.IsT0) throw new Exception("This should not be reachable due to the [UserSessionOnly] attribute");
+        
+        var session = x.Value.AsT0;
+        
+        await _sessionService.DeleteSession(session);
+        
+        var cookieDomainToUse = apiConfig.Frontend.CookieDomain.Split(',').FirstOrDefault(domain => Request.Headers.Host.ToString().EndsWith(domain, StringComparison.OrdinalIgnoreCase));
+        if (cookieDomainToUse != null)
+        {
+            HttpContext.Response.Cookies.Append("openShockSession", string.Empty, new CookieOptions
+            {
+                Expires = DateTimeOffset.FromUnixTimeSeconds(0),
+                Secure = true,
+                HttpOnly = true,
+                SameSite = SameSiteMode.Strict,
+                Domain = "." + cookieDomainToUse
+            });
+        }
+        else // Fallback to all domains
+        {
+            foreach (var stringValue in apiConfig.Frontend.CookieDomain.Split(','))
+            {
+                HttpContext.Response.Cookies.Append("openShockSession", string.Empty, new CookieOptions
+                {
+                    Expires = DateTimeOffset.FromUnixTimeSeconds(0),
+                    Secure = true,
+                    HttpOnly = true,
+                    SameSite = SameSiteMode.Strict,
+                    Domain = "." + stringValue
+                });
+            }
+        }
+
+        return RespondSlimSuccess();
+    }
+}
\ No newline at end of file
diff --git a/API/Controller/Account/Authenticated/_ApiController.cs b/API/Controller/Account/Authenticated/_ApiController.cs
index c4c1258e..59986d12 100644
--- a/API/Controller/Account/Authenticated/_ApiController.cs
+++ b/API/Controller/Account/Authenticated/_ApiController.cs
@@ -1,6 +1,7 @@
 using Asp.Versioning;
 using Microsoft.AspNetCore.Mvc;
 using OpenShock.API.Services.Account;
+using OpenShock.API.Services.Session;
 using OpenShock.Common.Authentication.Attributes;
 using OpenShock.Common.Authentication.ControllerBase;
 using OpenShock.Common.OpenShockDb;
@@ -21,12 +22,19 @@ public sealed partial class AuthenticatedAccountController : AuthenticatedSessio
     private readonly IRedisConnectionProvider _redis;
     private readonly ILogger<AuthenticatedAccountController> _logger;
     private readonly IAccountService _accountService;
+    private readonly ISessionService _sessionService;
 
-    public AuthenticatedAccountController(OpenShockContext db, IRedisConnectionProvider redis, ILogger<AuthenticatedAccountController> logger, IAccountService accountService)
+    public AuthenticatedAccountController(
+        OpenShockContext db,
+        IRedisConnectionProvider redis,
+        ILogger<AuthenticatedAccountController> logger,
+        IAccountService accountService,
+        ISessionService sessionService)
     {
         _db = db;
         _redis = redis;
         _logger = logger;
         _accountService = accountService;
+        _sessionService = sessionService;
     }
 }
\ No newline at end of file
diff --git a/API/Services/Session/ISessionService.cs b/API/Services/Session/ISessionService.cs
index 2b015b88..f287a6c7 100644
--- a/API/Services/Session/ISessionService.cs
+++ b/API/Services/Session/ISessionService.cs
@@ -9,7 +9,8 @@ public interface ISessionService
 {
     public Task<IEnumerable<LoginSession>> ListSessions(Guid userId);
 
-    public Task<LoginSession?> GetSession(Guid userId);
+    public Task<LoginSession?> GetSession(Guid sessionId);
 
+    public Task<bool> DeleteSession(Guid sessionId);
     public Task DeleteSession(LoginSession loginSession);
 }
\ No newline at end of file
diff --git a/API/Services/Session/SessionService.cs b/API/Services/Session/SessionService.cs
index 0284fe79..bb06b7bf 100644
--- a/API/Services/Session/SessionService.cs
+++ b/API/Services/Session/SessionService.cs
@@ -47,6 +47,15 @@ public async Task<IEnumerable<LoginSession>> ListSessions(Guid userId)
             .FirstOrDefaultAsync();
     }
 
+    public async Task<bool> DeleteSession(Guid sessionId)
+    {
+        var session = await GetSession(sessionId);
+        if (session == null) return false;
+        
+        await _loginSessions.DeleteAsync(session);
+        return true;
+    }
+
     public async Task DeleteSession(LoginSession loginSession)
     {
         await _loginSessions.DeleteAsync(loginSession);