diff --git a/esphome/components/bluetooth_proxy/bluetooth_connection.cpp b/esphome/components/bluetooth_proxy/bluetooth_connection.cpp
index 616dba891a..4b84257e27 100644
--- a/esphome/components/bluetooth_proxy/bluetooth_connection.cpp
+++ b/esphome/components/bluetooth_proxy/bluetooth_connection.cpp
@@ -8,8 +8,7 @@
 
 #include "bluetooth_proxy.h"
 
-namespace esphome {
-namespace bluetooth_proxy {
+namespace esphome::bluetooth_proxy {
 
 static const char *const TAG = "bluetooth_proxy.connection";
 
@@ -422,7 +421,6 @@ esp32_ble_tracker::AdvertisementParserType BluetoothConnection::get_advertisemen
   return this->proxy_->get_advertisement_parser_type();
 }
 
-}  // namespace bluetooth_proxy
-}  // namespace esphome
+}  // namespace esphome::bluetooth_proxy
 
 #endif  // USE_ESP32
diff --git a/esphome/components/bluetooth_proxy/bluetooth_connection.h b/esphome/components/bluetooth_proxy/bluetooth_connection.h
index 2673238fba..3fed9d531f 100644
--- a/esphome/components/bluetooth_proxy/bluetooth_connection.h
+++ b/esphome/components/bluetooth_proxy/bluetooth_connection.h
@@ -4,8 +4,7 @@
 
 #include "esphome/components/esp32_ble_client/ble_client_base.h"
 
-namespace esphome {
-namespace bluetooth_proxy {
+namespace esphome::bluetooth_proxy {
 
 class BluetoothProxy;
 
@@ -43,7 +42,6 @@ class BluetoothConnection : public esp32_ble_client::BLEClientBase {
   // 1 byte used, 1 byte padding
 };
 
-}  // namespace bluetooth_proxy
-}  // namespace esphome
+}  // namespace esphome::bluetooth_proxy
 
 #endif  // USE_ESP32
diff --git a/esphome/components/bluetooth_proxy/bluetooth_proxy.cpp b/esphome/components/bluetooth_proxy/bluetooth_proxy.cpp
index 8a1a2bff6a..de5508c777 100644
--- a/esphome/components/bluetooth_proxy/bluetooth_proxy.cpp
+++ b/esphome/components/bluetooth_proxy/bluetooth_proxy.cpp
@@ -7,8 +7,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace bluetooth_proxy {
+namespace esphome::bluetooth_proxy {
 
 static const char *const TAG = "bluetooth_proxy";
 
@@ -502,7 +501,6 @@ void BluetoothProxy::bluetooth_scanner_set_mode(bool active) {
 
 BluetoothProxy *global_bluetooth_proxy = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-}  // namespace bluetooth_proxy
-}  // namespace esphome
+}  // namespace esphome::bluetooth_proxy
 
 #endif  // USE_ESP32
diff --git a/esphome/components/bluetooth_proxy/bluetooth_proxy.h b/esphome/components/bluetooth_proxy/bluetooth_proxy.h
index b3d9044a2c..d249515fdf 100644
--- a/esphome/components/bluetooth_proxy/bluetooth_proxy.h
+++ b/esphome/components/bluetooth_proxy/bluetooth_proxy.h
@@ -18,8 +18,7 @@
 #include <esp_bt.h>
 #include <esp_bt_device.h>
 
-namespace esphome {
-namespace bluetooth_proxy {
+namespace esphome::bluetooth_proxy {
 
 static const esp_err_t ESP_GATT_NOT_CONNECTED = -1;
 static const int DONE_SENDING_SERVICES = -2;
@@ -158,7 +157,6 @@ class BluetoothProxy : public esp32_ble_tracker::ESPBTDeviceListener, public Com
 
 extern BluetoothProxy *global_bluetooth_proxy;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-}  // namespace bluetooth_proxy
-}  // namespace esphome
+}  // namespace esphome::bluetooth_proxy
 
 #endif  // USE_ESP32
diff --git a/esphome/components/esp32_ble/ble.cpp b/esphome/components/esp32_ble/ble.cpp
index 8b0cf4da98..35c48a711a 100644
--- a/esphome/components/esp32_ble/ble.cpp
+++ b/esphome/components/esp32_ble/ble.cpp
@@ -19,8 +19,7 @@
 #include <esp32-hal-bt.h>
 #endif
 
-namespace esphome {
-namespace esp32_ble {
+namespace esphome::esp32_ble {
 
 static const char *const TAG = "esp32_ble";
 
@@ -538,7 +537,6 @@ uint64_t ble_addr_to_uint64(const esp_bd_addr_t address) {
 
 ESP32BLE *global_ble = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-}  // namespace esp32_ble
-}  // namespace esphome
+}  // namespace esphome::esp32_ble
 
 #endif
diff --git a/esphome/components/esp32_ble/ble.h b/esphome/components/esp32_ble/ble.h
index 2c5697df82..543b2f26a3 100644
--- a/esphome/components/esp32_ble/ble.h
+++ b/esphome/components/esp32_ble/ble.h
@@ -21,8 +21,7 @@
 #include <esp_gattc_api.h>
 #include <esp_gatts_api.h>
 
-namespace esphome {
-namespace esp32_ble {
+namespace esphome::esp32_ble {
 
 // Maximum number of BLE scan results to buffer
 // Sized to handle bursts of advertisements while allowing for processing delays
@@ -191,7 +190,6 @@ template<typename... Ts> class BLEDisableAction : public Action<Ts...> {
   void play(Ts... x) override { global_ble->disable(); }
 };
 
-}  // namespace esp32_ble
-}  // namespace esphome
+}  // namespace esphome::esp32_ble
 
 #endif
diff --git a/esphome/components/esp32_ble/ble_advertising.cpp b/esphome/components/esp32_ble/ble_advertising.cpp
index 8d43b5af33..6a0d677aa7 100644
--- a/esphome/components/esp32_ble/ble_advertising.cpp
+++ b/esphome/components/esp32_ble/ble_advertising.cpp
@@ -8,8 +8,7 @@
 #include "esphome/core/log.h"
 #include "esphome/core/application.h"
 
-namespace esphome {
-namespace esp32_ble {
+namespace esphome::esp32_ble {
 
 static const char *const TAG = "esp32_ble.advertising";
 
@@ -160,7 +159,6 @@ void BLEAdvertising::register_raw_advertisement_callback(std::function<void(bool
   this->raw_advertisements_callbacks_.push_back(std::move(callback));
 }
 
-}  // namespace esp32_ble
-}  // namespace esphome
+}  // namespace esphome::esp32_ble
 
 #endif
diff --git a/esphome/components/esp32_ble/ble_advertising.h b/esphome/components/esp32_ble/ble_advertising.h
index 0b2142115d..2254251486 100644
--- a/esphome/components/esp32_ble/ble_advertising.h
+++ b/esphome/components/esp32_ble/ble_advertising.h
@@ -10,8 +10,7 @@
 #include <esp_gap_ble_api.h>
 #include <esp_gatts_api.h>
 
-namespace esphome {
-namespace esp32_ble {
+namespace esphome::esp32_ble {
 
 using raw_adv_data_t = struct {
   uint8_t *data;
@@ -55,7 +54,6 @@ class BLEAdvertising {
   int8_t current_adv_index_{-1};  // -1 means standard scan response
 };
 
-}  // namespace esp32_ble
-}  // namespace esphome
+}  // namespace esphome::esp32_ble
 
 #endif
diff --git a/esphome/components/esp32_ble/ble_event.h b/esphome/components/esp32_ble/ble_event.h
index 9268c710f3..884fc9ba65 100644
--- a/esphome/components/esp32_ble/ble_event.h
+++ b/esphome/components/esp32_ble/ble_event.h
@@ -11,8 +11,7 @@
 
 #include "ble_scan_result.h"
 
-namespace esphome {
-namespace esp32_ble {
+namespace esphome::esp32_ble {
 
 // Compile-time verification that ESP-IDF scan complete events only contain a status field
 // This ensures our reinterpret_cast in ble.cpp is safe
@@ -395,7 +394,6 @@ static_assert(sizeof(esp_ble_sec_t) <= 73, "esp_ble_sec_t is larger than BLEScan
 
 // BLEEvent total size: 84 bytes (80 byte union + 1 byte type + 3 bytes padding)
 
-}  // namespace esp32_ble
-}  // namespace esphome
+}  // namespace esphome::esp32_ble
 
 #endif
diff --git a/esphome/components/esp32_ble/ble_scan_result.h b/esphome/components/esp32_ble/ble_scan_result.h
index 49b0d5523d..980b39b0b2 100644
--- a/esphome/components/esp32_ble/ble_scan_result.h
+++ b/esphome/components/esp32_ble/ble_scan_result.h
@@ -4,8 +4,7 @@
 
 #include <esp_gap_ble_api.h>
 
-namespace esphome {
-namespace esp32_ble {
+namespace esphome::esp32_ble {
 
 // Structure for BLE scan results - only fields we actually use
 struct __attribute__((packed)) BLEScanResult {
@@ -18,7 +17,6 @@ struct __attribute__((packed)) BLEScanResult {
   uint8_t search_evt;
 };  // ~73 bytes vs ~400 bytes for full esp_ble_gap_cb_param_t
 
-}  // namespace esp32_ble
-}  // namespace esphome
+}  // namespace esphome::esp32_ble
 
 #endif
diff --git a/esphome/components/esp32_ble/ble_uuid.cpp b/esphome/components/esp32_ble/ble_uuid.cpp
index aa1edd96b2..fc6981acd3 100644
--- a/esphome/components/esp32_ble/ble_uuid.cpp
+++ b/esphome/components/esp32_ble/ble_uuid.cpp
@@ -7,8 +7,7 @@
 #include <cinttypes>
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace esp32_ble {
+namespace esphome::esp32_ble {
 
 static const char *const TAG = "esp32_ble";
 
@@ -189,7 +188,6 @@ std::string ESPBTUUID::to_string() const {
   return "";
 }
 
-}  // namespace esp32_ble
-}  // namespace esphome
+}  // namespace esphome::esp32_ble
 
 #endif
diff --git a/esphome/components/esp32_ble/ble_uuid.h b/esphome/components/esp32_ble/ble_uuid.h
index 06f84d4da7..150ca359d3 100644
--- a/esphome/components/esp32_ble/ble_uuid.h
+++ b/esphome/components/esp32_ble/ble_uuid.h
@@ -8,8 +8,7 @@
 #include <string>
 #include <esp_bt_defs.h>
 
-namespace esphome {
-namespace esp32_ble {
+namespace esphome::esp32_ble {
 
 class ESPBTUUID {
  public:
@@ -41,7 +40,6 @@ class ESPBTUUID {
   esp_bt_uuid_t uuid_;
 };
 
-}  // namespace esp32_ble
-}  // namespace esphome
+}  // namespace esphome::esp32_ble
 
 #endif
diff --git a/esphome/components/esp32_ble_tracker/automation.h b/esphome/components/esp32_ble_tracker/automation.h
index ef677922e3..c0e6eee138 100644
--- a/esphome/components/esp32_ble_tracker/automation.h
+++ b/esphome/components/esp32_ble_tracker/automation.h
@@ -5,8 +5,7 @@
 
 #ifdef USE_ESP32
 
-namespace esphome {
-namespace esp32_ble_tracker {
+namespace esphome::esp32_ble_tracker {
 #ifdef USE_ESP32_BLE_DEVICE
 class ESPBTAdvertiseTrigger : public Trigger<const ESPBTDevice &>, public ESPBTDeviceListener {
  public:
@@ -108,7 +107,6 @@ template<typename... Ts> class ESP32BLEStopScanAction : public Action<Ts...>, pu
   void play(Ts... x) override { this->parent_->stop_scan(); }
 };
 
-}  // namespace esp32_ble_tracker
-}  // namespace esphome
+}  // namespace esphome::esp32_ble_tracker
 
 #endif
diff --git a/esphome/components/esp32_ble_tracker/esp32_ble_tracker.cpp b/esphome/components/esp32_ble_tracker/esp32_ble_tracker.cpp
index 96003073d7..e0029ad15b 100644
--- a/esphome/components/esp32_ble_tracker/esp32_ble_tracker.cpp
+++ b/esphome/components/esp32_ble_tracker/esp32_ble_tracker.cpp
@@ -35,8 +35,7 @@
 // bt_trace.h
 #undef TAG
 
-namespace esphome {
-namespace esp32_ble_tracker {
+namespace esphome::esp32_ble_tracker {
 
 static const char *const TAG = "esp32_ble_tracker";
 
@@ -882,7 +881,6 @@ bool ESPBTDevice::resolve_irk(const uint8_t *irk) const {
 }
 #endif  // USE_ESP32_BLE_DEVICE
 
-}  // namespace esp32_ble_tracker
-}  // namespace esphome
+}  // namespace esphome::esp32_ble_tracker
 
 #endif  // USE_ESP32
diff --git a/esphome/components/esp32_ble_tracker/esp32_ble_tracker.h b/esphome/components/esp32_ble_tracker/esp32_ble_tracker.h
index e10f4551e8..e1119c0e18 100644
--- a/esphome/components/esp32_ble_tracker/esp32_ble_tracker.h
+++ b/esphome/components/esp32_ble_tracker/esp32_ble_tracker.h
@@ -22,8 +22,7 @@
 #include "esphome/components/esp32_ble/ble.h"
 #include "esphome/components/esp32_ble/ble_uuid.h"
 
-namespace esphome {
-namespace esp32_ble_tracker {
+namespace esphome::esp32_ble_tracker {
 
 using namespace esp32_ble;
 
@@ -321,7 +320,6 @@ class ESP32BLETracker : public Component,
 // NOLINTNEXTLINE
 extern ESP32BLETracker *global_esp32_ble_tracker;
 
-}  // namespace esp32_ble_tracker
-}  // namespace esphome
+}  // namespace esphome::esp32_ble_tracker
 
 #endif