diff --git a/esphome/components/select/select.cpp b/esphome/components/select/select.cpp
index 17c6c811dd..9fd6b2b1b8 100644
--- a/esphome/components/select/select.cpp
+++ b/esphome/components/select/select.cpp
@@ -8,8 +8,6 @@ namespace esphome::select {
 
 static const char *const TAG = "select";
 
-void Select::publish_state(const std::string &state) { this->publish_state(state.c_str()); }
-
 void Select::publish_state(const char *state) {
   auto index = this->index_of(state);
   if (index.has_value()) {
@@ -34,16 +32,6 @@ void Select::publish_state(size_t index) {
 #endif
 }
 
-StringRef Select::current_option() const {
-  return this->has_state() ? StringRef(this->option_at(this->active_index_)) : StringRef();
-}
-
-bool Select::has_option(const std::string &option) const { return this->index_of(option.c_str()).has_value(); }
-
-bool Select::has_option(const char *option) const { return this->index_of(option).has_value(); }
-
-bool Select::has_index(size_t index) const { return index < this->size(); }
-
 size_t Select::size() const {
   const auto &options = traits.get_options();
   return options.size();
diff --git a/esphome/components/select/select.h b/esphome/components/select/select.h
index 34d9248523..0813fe9cf2 100644
--- a/esphome/components/select/select.h
+++ b/esphome/components/select/select.h
@@ -33,24 +33,26 @@ class Select : public EntityBase {
   Select() = default;
   ~Select() = default;
 
-  void publish_state(const std::string &state);
+  void publish_state(const std::string &state) { this->publish_state(state.c_str()); }
   void publish_state(const char *state);
   void publish_state(size_t index);
 
   /// Return the currently selected option, or empty StringRef if no state.
   /// The returned StringRef points to string literals from codegen (static storage).
   /// Traits are set once at startup and valid for the lifetime of the program.
-  StringRef current_option() const;
+  StringRef current_option() const {
+    return this->has_state() ? StringRef(this->option_at(this->active_index_)) : StringRef();
+  }
 
   /// Instantiate a SelectCall object to modify this select component's state.
   SelectCall make_call() { return SelectCall(this); }
 
   /// Return whether this select component contains the provided option.
-  bool has_option(const std::string &option) const;
-  bool has_option(const char *option) const;
+  bool has_option(const std::string &option) const { return this->index_of(option.c_str()).has_value(); }
+  bool has_option(const char *option) const { return this->index_of(option).has_value(); }
 
   /// Return whether this select component contains the provided index offset.
-  bool has_index(size_t index) const;
+  bool has_index(size_t index) const { return index < this->size(); }
 
   /// Return the number of options in this select component.
   size_t size() const;
diff --git a/esphome/components/select/select_traits.cpp b/esphome/components/select/select_traits.cpp
index ff52c0d85b..67a5118646 100644
--- a/esphome/components/select/select_traits.cpp
+++ b/esphome/components/select/select_traits.cpp
@@ -11,6 +11,4 @@ void SelectTraits::set_options(const FixedVector<const char *> &options) {
   }
 }
 
-const FixedVector<const char *> &SelectTraits::get_options() const { return this->options_; }
-
 }  // namespace esphome::select
diff --git a/esphome/components/select/select_traits.h b/esphome/components/select/select_traits.h
index 78a83e5944..e1b261bc96 100644
--- a/esphome/components/select/select_traits.h
+++ b/esphome/components/select/select_traits.h
@@ -9,7 +9,7 @@ class SelectTraits {
  public:
   void set_options(const std::initializer_list<const char *> &options);
   void set_options(const FixedVector<const char *> &options);
-  const FixedVector<const char *> &get_options() const;
+  const FixedVector<const char *> &get_options() const { return this->options_; }
 
  protected:
   FixedVector<const char *> options_;