diff --git a/esphome/components/mdns/mdns_arduino.h b/esphome/components/mdns/mdns_arduino.h
new file mode 100644
index 0000000000..8d72c86f5c
--- /dev/null
+++ b/esphome/components/mdns/mdns_arduino.h
@@ -0,0 +1,42 @@
+#pragma once
+#include "esphome/core/defines.h"
+
+// Common Arduino mDNS registration for RP2040 and LibreTiny
+#if defined(USE_MDNS) && (defined(USE_RP2040) || defined(USE_LIBRETINY))
+
+#include "esphome/core/application.h"
+#include "mdns_component.h"
+
+namespace esphome::mdns {
+
+/// Register mDNS services using Arduino-style mDNS library (RP2040/LibreTiny)
+/// @param services The services to register
+inline void register_arduino_mdns(MDNSComponent *, StaticVector<MDNSService, MDNS_SERVICE_COUNT> &services) {
+  MDNS.begin(App.get_name().c_str());
+
+  for (const auto &service : services) {
+    // Strip the leading underscore from the proto and service_type. While it is
+    // part of the wire protocol to have an underscore, and for example ESP-IDF
+    // expects the underscore to be there, the RP2040/LibreTiny mDNS
+    // implementations always add the underscore themselves.
+    auto *proto = MDNS_STR_ARG(service.proto);
+    while (*proto == '_') {
+      proto++;
+    }
+
+    auto *service_type = MDNS_STR_ARG(service.service_type);
+    while (*service_type == '_') {
+      service_type++;
+    }
+
+    uint16_t port = const_cast<TemplatableValue<uint16_t> &>(service.port).value();
+    MDNS.addService(service_type, proto, port);
+    for (const auto &record : service.txt_records) {
+      MDNS.addServiceTxt(service_type, proto, MDNS_STR_ARG(record.key), MDNS_STR_ARG(record.value));
+    }
+  }
+}
+
+}  // namespace esphome::mdns
+
+#endif
diff --git a/esphome/components/mdns/mdns_libretiny.cpp b/esphome/components/mdns/mdns_libretiny.cpp
index 986099fa1f..7b104ed2d7 100644
--- a/esphome/components/mdns/mdns_libretiny.cpp
+++ b/esphome/components/mdns/mdns_libretiny.cpp
@@ -1,41 +1,13 @@
 #include "esphome/core/defines.h"
 #if defined(USE_LIBRETINY) && defined(USE_MDNS)
 
-#include "esphome/components/network/ip_address.h"
-#include "esphome/components/network/util.h"
-#include "esphome/core/application.h"
-#include "esphome/core/log.h"
-#include "mdns_component.h"
-
 #include <mDNS.h>
 
+#include "mdns_arduino.h"
+
 namespace esphome::mdns {
 
-static void register_libretiny(MDNSComponent *, StaticVector<MDNSService, MDNS_SERVICE_COUNT> &services) {
-  MDNS.begin(App.get_name().c_str());
-
-  for (const auto &service : services) {
-    // Strip the leading underscore from the proto and service_type. While it is
-    // part of the wire protocol to have an underscore, and for example ESP-IDF
-    // expects the underscore to be there, the ESP8266 implementation always adds
-    // the underscore itself.
-    auto *proto = MDNS_STR_ARG(service.proto);
-    while (*proto == '_') {
-      proto++;
-    }
-    auto *service_type = MDNS_STR_ARG(service.service_type);
-    while (*service_type == '_') {
-      service_type++;
-    }
-    uint16_t port_ = const_cast<TemplatableValue<uint16_t> &>(service.port).value();
-    MDNS.addService(service_type, proto, port_);
-    for (const auto &record : service.txt_records) {
-      MDNS.addServiceTxt(service_type, proto, MDNS_STR_ARG(record.key), MDNS_STR_ARG(record.value));
-    }
-  }
-}
-
-void MDNSComponent::setup() { this->setup_buffers_and_register_(register_libretiny); }
+void MDNSComponent::setup() { this->setup_buffers_and_register_(register_arduino_mdns); }
 
 void MDNSComponent::on_shutdown() {}
 
diff --git a/esphome/components/mdns/mdns_rp2040.cpp b/esphome/components/mdns/mdns_rp2040.cpp
index e4a9b60cdb..59688e7b36 100644
--- a/esphome/components/mdns/mdns_rp2040.cpp
+++ b/esphome/components/mdns/mdns_rp2040.cpp
@@ -1,41 +1,13 @@
 #include "esphome/core/defines.h"
 #if defined(USE_RP2040) && defined(USE_MDNS)
 
-#include "esphome/components/network/ip_address.h"
-#include "esphome/components/network/util.h"
-#include "esphome/core/application.h"
-#include "esphome/core/log.h"
-#include "mdns_component.h"
-
 #include <ESP8266mDNS.h>
 
+#include "mdns_arduino.h"
+
 namespace esphome::mdns {
 
-static void register_rp2040(MDNSComponent *, StaticVector<MDNSService, MDNS_SERVICE_COUNT> &services) {
-  MDNS.begin(App.get_name().c_str());
-
-  for (const auto &service : services) {
-    // Strip the leading underscore from the proto and service_type. While it is
-    // part of the wire protocol to have an underscore, and for example ESP-IDF
-    // expects the underscore to be there, the ESP8266 implementation always adds
-    // the underscore itself.
-    auto *proto = MDNS_STR_ARG(service.proto);
-    while (*proto == '_') {
-      proto++;
-    }
-    auto *service_type = MDNS_STR_ARG(service.service_type);
-    while (*service_type == '_') {
-      service_type++;
-    }
-    uint16_t port = const_cast<TemplatableValue<uint16_t> &>(service.port).value();
-    MDNS.addService(service_type, proto, port);
-    for (const auto &record : service.txt_records) {
-      MDNS.addServiceTxt(service_type, proto, MDNS_STR_ARG(record.key), MDNS_STR_ARG(record.value));
-    }
-  }
-}
-
-void MDNSComponent::setup() { this->setup_buffers_and_register_(register_rp2040); }
+void MDNSComponent::setup() { this->setup_buffers_and_register_(register_arduino_mdns); }
 
 void MDNSComponent::loop() { MDNS.update(); }