diff --git a/src/NATS.Server/Monitoring/Varz.cs b/src/NATS.Server/Monitoring/Varz.cs
index 3e85374..dda7234 100644
--- a/src/NATS.Server/Monitoring/Varz.cs
+++ b/src/NATS.Server/Monitoring/Varz.cs
@@ -355,8 +355,29 @@ public sealed class MqttOptsVarz
     [JsonPropertyName("port")]
     public int Port { get; set; }
 
+    [JsonPropertyName("no_auth_user")]
+    public string NoAuthUser { get; set; } = "";
+
+    [JsonPropertyName("auth_timeout")]
+    public double AuthTimeout { get; set; }
+
+    [JsonPropertyName("tls_map")]
+    public bool TlsMap { get; set; }
+
     [JsonPropertyName("tls_timeout")]
     public double TlsTimeout { get; set; }
+
+    [JsonPropertyName("tls_pinned_certs")]
+    public string[] TlsPinnedCerts { get; set; } = [];
+
+    [JsonPropertyName("js_domain")]
+    public string JsDomain { get; set; } = "";
+
+    [JsonPropertyName("ack_wait")]
+    public long AckWait { get; set; }
+
+    [JsonPropertyName("max_ack_pending")]
+    public ushort MaxAckPending { get; set; }
 }
 
 /// <summary>
diff --git a/src/NATS.Server/Monitoring/VarzHandler.cs b/src/NATS.Server/Monitoring/VarzHandler.cs
index 3bdbe6d..290139c 100644
--- a/src/NATS.Server/Monitoring/VarzHandler.cs
+++ b/src/NATS.Server/Monitoring/VarzHandler.cs
@@ -121,6 +121,7 @@ public sealed class VarzHandler : IDisposable
                 Subscriptions = _server.SubList.Count,
                 ConfigLoadTime = _server.StartTime,
                 HttpReqStats = stats.HttpReqStats.ToDictionary(kv => kv.Key, kv => (ulong)kv.Value),
+                Mqtt = BuildMqttVarz(),
             };
         }
         finally
@@ -134,6 +135,27 @@ public sealed class VarzHandler : IDisposable
         _varzMu.Dispose();
     }
 
+    private MqttOptsVarz BuildMqttVarz()
+    {
+        var mqtt = _options.Mqtt;
+        if (mqtt is null)
+            return new MqttOptsVarz();
+
+        return new MqttOptsVarz
+        {
+            Host = mqtt.Host,
+            Port = mqtt.Port,
+            NoAuthUser = mqtt.NoAuthUser ?? "",
+            AuthTimeout = mqtt.AuthTimeout,
+            TlsMap = mqtt.TlsMap,
+            TlsTimeout = mqtt.TlsTimeout,
+            TlsPinnedCerts = mqtt.TlsPinnedCerts?.ToArray() ?? [],
+            JsDomain = mqtt.JsDomain ?? "",
+            AckWait = (long)mqtt.AckWait.TotalNanoseconds,
+            MaxAckPending = mqtt.MaxAckPending,
+        };
+    }
+
     /// <summary>
     /// Formats a TimeSpan as a human-readable uptime string matching Go server format.
     /// </summary>
diff --git a/tests/NATS.Server.Tests/MonitorTests.cs b/tests/NATS.Server.Tests/MonitorTests.cs
index d4dad6c..bb1356a 100644
--- a/tests/NATS.Server.Tests/MonitorTests.cs
+++ b/tests/NATS.Server.Tests/MonitorTests.cs
@@ -271,6 +271,23 @@ public class MonitorTests : IAsyncLifetime
         response.StatusCode.ShouldBe(HttpStatusCode.OK);
     }
 
+    [Fact]
+    public async Task Varz_includes_mqtt_section()
+    {
+        var response = await _http.GetAsync($"http://127.0.0.1:{_monitorPort}/varz");
+        response.StatusCode.ShouldBe(HttpStatusCode.OK);
+
+        var varz = await response.Content.ReadFromJsonAsync<Varz>();
+        varz.ShouldNotBeNull();
+        varz.Mqtt.ShouldNotBeNull();
+        varz.Mqtt.Host.ShouldBe("");
+        varz.Mqtt.Port.ShouldBe(0);
+        varz.Mqtt.NoAuthUser.ShouldBe("");
+        varz.Mqtt.JsDomain.ShouldBe("");
+        varz.Mqtt.AckWait.ShouldBe(0L);
+        varz.Mqtt.MaxAckPending.ShouldBe((ushort)0);
+    }
+
     private static int GetFreePort()
     {
         using var sock = new Socket(AddressFamily.InterNetwork, SocketType.Stream, ProtocolType.Tcp);