diff --git a/esphome/components/logger/logger.cpp b/esphome/components/logger/logger.cpp
index 01a7565699..195e04948d 100644
--- a/esphome/components/logger/logger.cpp
+++ b/esphome/components/logger/logger.cpp
@@ -8,8 +8,7 @@
 #include "esphome/core/hal.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 static const char *const TAG = "logger";
 
@@ -283,5 +282,4 @@ void Logger::set_log_level(uint8_t level) {
 
 Logger *global_logger = nullptr;  // NOLINT(cppcoreguidelines-avoid-non-const-global-variables)
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
diff --git a/esphome/components/logger/logger.h b/esphome/components/logger/logger.h
index 6bd5bb66ed..aa76a188c9 100644
--- a/esphome/components/logger/logger.h
+++ b/esphome/components/logger/logger.h
@@ -34,9 +34,7 @@
 struct device;
 #endif
 
-namespace esphome {
-
-namespace logger {
+namespace esphome::logger {
 
 // Color and letter constants for log levels
 static const char *const LOG_LEVEL_COLORS[] = {
@@ -411,6 +409,4 @@ class LoggerMessageTrigger : public Trigger<uint8_t, const char *, const char *>
   uint8_t level_;
 };
 
-}  // namespace logger
-
-}  // namespace esphome
+}  // namespace esphome::logger
diff --git a/esphome/components/logger/logger_esp32.cpp b/esphome/components/logger/logger_esp32.cpp
index 2ba1efec50..44243d4aa8 100644
--- a/esphome/components/logger/logger_esp32.cpp
+++ b/esphome/components/logger/logger_esp32.cpp
@@ -29,8 +29,7 @@
 
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 static const char *const TAG = "logger";
 
@@ -206,6 +205,5 @@ const char *const UART_SELECTIONS[] = {
 
 const char *Logger::get_uart_selection_() { return UART_SELECTIONS[this->uart_]; }
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
 #endif
diff --git a/esphome/components/logger/logger_esp8266.cpp b/esphome/components/logger/logger_esp8266.cpp
index 5bfeb21007..fb5f6cee5d 100644
--- a/esphome/components/logger/logger_esp8266.cpp
+++ b/esphome/components/logger/logger_esp8266.cpp
@@ -2,8 +2,7 @@
 #include "logger.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 static const char *const TAG = "logger";
 
@@ -40,6 +39,5 @@ const char *const UART_SELECTIONS[] = {"UART0", "UART1", "UART0_SWAP"};
 
 const char *Logger::get_uart_selection_() { return UART_SELECTIONS[this->uart_]; }
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
 #endif
diff --git a/esphome/components/logger/logger_host.cpp b/esphome/components/logger/logger_host.cpp
index edffb1a8c3..4abe92286a 100644
--- a/esphome/components/logger/logger_host.cpp
+++ b/esphome/components/logger/logger_host.cpp
@@ -1,8 +1,7 @@
 #if defined(USE_HOST)
 #include "logger.h"
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 void HOT Logger::write_msg_(const char *msg) {
   time_t rawtime;
@@ -18,7 +17,6 @@ void HOT Logger::write_msg_(const char *msg) {
 
 void Logger::pre_setup() { global_logger = this; }
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
 
 #endif
diff --git a/esphome/components/logger/logger_libretiny.cpp b/esphome/components/logger/logger_libretiny.cpp
index 12e55b7cef..09d0622bc3 100644
--- a/esphome/components/logger/logger_libretiny.cpp
+++ b/esphome/components/logger/logger_libretiny.cpp
@@ -1,8 +1,7 @@
 #ifdef USE_LIBRETINY
 #include "logger.h"
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 static const char *const TAG = "logger";
 
@@ -56,7 +55,6 @@ const char *const UART_SELECTIONS[] = {"DEFAULT", "UART0", "UART1", "UART2"};
 
 const char *Logger::get_uart_selection_() { return UART_SELECTIONS[this->uart_]; }
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
 
 #endif  // USE_LIBRETINY
diff --git a/esphome/components/logger/logger_rp2040.cpp b/esphome/components/logger/logger_rp2040.cpp
index 2783d77ac1..f1cad9b283 100644
--- a/esphome/components/logger/logger_rp2040.cpp
+++ b/esphome/components/logger/logger_rp2040.cpp
@@ -2,8 +2,7 @@
 #include "logger.h"
 #include "esphome/core/log.h"
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 static const char *const TAG = "logger";
 
@@ -34,6 +33,5 @@ const char *const UART_SELECTIONS[] = {"UART0", "UART1", "USB_CDC"};
 
 const char *Logger::get_uart_selection_() { return UART_SELECTIONS[this->uart_]; }
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
 #endif  // USE_RP2040
diff --git a/esphome/components/logger/logger_zephyr.cpp b/esphome/components/logger/logger_zephyr.cpp
index 35ef2e9561..58a09facd5 100644
--- a/esphome/components/logger/logger_zephyr.cpp
+++ b/esphome/components/logger/logger_zephyr.cpp
@@ -8,8 +8,7 @@
 #include <zephyr/drivers/uart.h>
 #include <zephyr/usb/usb_device.h>
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 static const char *const TAG = "logger";
 
@@ -82,7 +81,6 @@ const char *const UART_SELECTIONS[] = {"UART0", "UART1", "USB_CDC"};
 
 const char *Logger::get_uart_selection_() { return UART_SELECTIONS[this->uart_]; }
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
 
 #endif
diff --git a/esphome/components/logger/select/logger_level_select.cpp b/esphome/components/logger/select/logger_level_select.cpp
index b71a6e02a2..d9c950ce3c 100644
--- a/esphome/components/logger/select/logger_level_select.cpp
+++ b/esphome/components/logger/select/logger_level_select.cpp
@@ -1,7 +1,6 @@
 #include "logger_level_select.h"
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 void LoggerLevelSelect::publish_state(int level) {
   auto value = this->at(level);
@@ -23,5 +22,4 @@ void LoggerLevelSelect::control(const std::string &value) {
   this->parent_->set_log_level(level.value());
 }
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
diff --git a/esphome/components/logger/select/logger_level_select.h b/esphome/components/logger/select/logger_level_select.h
index 2c92c84d13..f31a6f6cdb 100644
--- a/esphome/components/logger/select/logger_level_select.h
+++ b/esphome/components/logger/select/logger_level_select.h
@@ -3,13 +3,11 @@
 #include "esphome/components/select/select.h"
 #include "esphome/core/component.h"
 #include "esphome/components/logger/logger.h"
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 class LoggerLevelSelect : public Component, public select::Select, public Parented<Logger> {
  public:
   void publish_state(int level);
   void setup() override;
   void control(const std::string &value) override;
 };
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
diff --git a/esphome/components/logger/task_log_buffer.cpp b/esphome/components/logger/task_log_buffer.cpp
index 24d9284f1a..b5dd9f0239 100644
--- a/esphome/components/logger/task_log_buffer.cpp
+++ b/esphome/components/logger/task_log_buffer.cpp
@@ -5,8 +5,7 @@
 
 #ifdef USE_ESPHOME_TASK_LOG_BUFFER
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 TaskLogBuffer::TaskLogBuffer(size_t total_buffer_size) {
   // Store the buffer size
@@ -132,7 +131,6 @@ bool TaskLogBuffer::send_message_thread_safe(uint8_t level, const char *tag, uin
   return true;
 }
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
 
 #endif  // USE_ESPHOME_TASK_LOG_BUFFER
diff --git a/esphome/components/logger/task_log_buffer.h b/esphome/components/logger/task_log_buffer.h
index 1618a5a121..fdda07190d 100644
--- a/esphome/components/logger/task_log_buffer.h
+++ b/esphome/components/logger/task_log_buffer.h
@@ -11,8 +11,7 @@
 #include <freertos/FreeRTOS.h>
 #include <freertos/ringbuf.h>
 
-namespace esphome {
-namespace logger {
+namespace esphome::logger {
 
 class TaskLogBuffer {
  public:
@@ -63,7 +62,6 @@ class TaskLogBuffer {
   mutable uint16_t last_processed_counter_{0};  // Tracks last processed message
 };
 
-}  // namespace logger
-}  // namespace esphome
+}  // namespace esphome::logger
 
 #endif  // USE_ESPHOME_TASK_LOG_BUFFER