diff --git a/CMakeLists.txt b/CMakeLists.txt
index 6258defd..1132417f 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -235,6 +235,25 @@ if(SPDLOG_NO_EXCEPTIONS AND NOT MSVC)
     target_compile_options(spdlog PRIVATE -fno-exceptions)
 endif()
 
+# ---------------------------------------------------------------------------------------
+# Allow override of level names
+# ---------------------------------------------------------------------------------------
+set(SPDLOG_LEVEL_NAME_TRACE "trace" CACHE STRING "custom level name")
+set(SPDLOG_LEVEL_NAME_DEBUG "debug" CACHE STRING "custom level name")
+set(SPDLOG_LEVEL_NAME_INFO "info" CACHE STRING "custom level name")
+set(SPDLOG_LEVEL_NAME_WARNING "warning" CACHE STRING "custom level name")
+set(SPDLOG_LEVEL_NAME_ERROR "error" CACHE STRING "custom level name")
+set(SPDLOG_LEVEL_NAME_CRITICAL "critical" CACHE STRING "custom level name")
+set(SPDLOG_LEVEL_NAME_OFF "off" CACHE STRING "custom level name")
+
+target_compile_definitions(spdlog PUBLIC SPDLOG_LEVEL_NAME_TRACE=\"${SPDLOG_LEVEL_NAME_TRACE}\")
+target_compile_definitions(spdlog PUBLIC SPDLOG_LEVEL_NAME_DEBUG=\"${SPDLOG_LEVEL_NAME_DEBUG}\")
+target_compile_definitions(spdlog PUBLIC SPDLOG_LEVEL_NAME_INFO=\"${SPDLOG_LEVEL_NAME_INFO}\")
+target_compile_definitions(spdlog PUBLIC SPDLOG_LEVEL_NAME_WARNING=\"${SPDLOG_LEVEL_NAME_WARNING}\")
+target_compile_definitions(spdlog PUBLIC SPDLOG_LEVEL_NAME_ERROR=\"${SPDLOG_LEVEL_NAME_ERROR}\")
+target_compile_definitions(spdlog PUBLIC SPDLOG_LEVEL_NAME_CRITICAL=\"${SPDLOG_LEVEL_NAME_CRITICAL}\")
+target_compile_definitions(spdlog PUBLIC SPDLOG_LEVEL_NAME_OFF=\"${SPDLOG_LEVEL_NAME_OFF}\")
+
 # ---------------------------------------------------------------------------------------
 # Build binaries
 # ---------------------------------------------------------------------------------------
diff --git a/include/spdlog/common-inl.h b/include/spdlog/common-inl.h
index d0c85c6b..c3e99222 100644
--- a/include/spdlog/common-inl.h
+++ b/include/spdlog/common-inl.h
@@ -13,6 +13,9 @@
 namespace spdlog {
 namespace level {
 
+#if __cplusplus >= 201703L
+constexpr
+#endif
 static string_view_t level_string_views[] SPDLOG_LEVEL_NAMES;
 
 static const char *short_level_names[] SPDLOG_SHORT_LEVEL_NAMES;
@@ -22,11 +25,6 @@ SPDLOG_INLINE const string_view_t &to_string_view(spdlog::level::level_enum l) S
     return level_string_views[l];
 }
 
-SPDLOG_INLINE void set_string_view(spdlog::level::level_enum l, const string_view_t &s) SPDLOG_NOEXCEPT
-{
-    level_string_views[l] = s;
-}
-
 SPDLOG_INLINE const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT
 {
     return short_level_names[l];
diff --git a/include/spdlog/common.h b/include/spdlog/common.h
index 95f3719e..dee5baca 100644
--- a/include/spdlog/common.h
+++ b/include/spdlog/common.h
@@ -152,10 +152,38 @@ enum level_enum
     n_levels
 };
 
+#if !defined(SPDLOG_LEVEL_NAME_TRACE)
+#define SPDLOG_LEVEL_NAME_TRACE "trace"
+#endif
+
+#if !defined(SPDLOG_LEVEL_NAME_DEBUG)
+#define SPDLOG_LEVEL_NAME_DEBUG "debug"
+#endif
+
+#if !defined(SPDLOG_LEVEL_NAME_INFO)
+#define SPDLOG_LEVEL_NAME_INFO "info"
+#endif
+
+#if !defined(SPDLOG_LEVEL_NAME_WARNING)
+#define SPDLOG_LEVEL_NAME_WARNING "warning"
+#endif
+
+#if !defined(SPDLOG_LEVEL_NAME_ERROR)
+#define SPDLOG_LEVEL_NAME_ERROR "error"
+#endif
+
+#if !defined(SPDLOG_LEVEL_NAME_CRITICAL)
+#define SPDLOG_LEVEL_NAME_CRITICAL "critical"
+#endif
+
+#if !defined(SPDLOG_LEVEL_NAME_OFF)
+#define SPDLOG_LEVEL_NAME_OFF "off"
+#endif
+
 #if !defined(SPDLOG_LEVEL_NAMES)
 #define SPDLOG_LEVEL_NAMES                                                                                                                 \
     {                                                                                                                                      \
-        "trace", "debug", "info", "warning", "error", "critical", "off"                                                                    \
+        SPDLOG_LEVEL_NAME_TRACE, SPDLOG_LEVEL_NAME_DEBUG, SPDLOG_LEVEL_NAME_INFO, SPDLOG_LEVEL_NAME_WARNING, SPDLOG_LEVEL_NAME_ERROR, SPDLOG_LEVEL_NAME_CRITICAL, SPDLOG_LEVEL_NAME_OFF                                                                    \
     }
 #endif
 
@@ -168,7 +196,6 @@ enum level_enum
 #endif
 
 SPDLOG_API const string_view_t &to_string_view(spdlog::level::level_enum l) SPDLOG_NOEXCEPT;
-SPDLOG_API void set_string_view(spdlog::level::level_enum l, const string_view_t &s) SPDLOG_NOEXCEPT;
 SPDLOG_API const char *to_short_c_str(spdlog::level::level_enum l) SPDLOG_NOEXCEPT;
 SPDLOG_API spdlog::level::level_enum from_str(const std::string &name) SPDLOG_NOEXCEPT;
 
diff --git a/include/spdlog/tweakme.h b/include/spdlog/tweakme.h
index 31e417ab..87c3d5fa 100644
--- a/include/spdlog/tweakme.h
+++ b/include/spdlog/tweakme.h
@@ -87,12 +87,54 @@
 ///////////////////////////////////////////////////////////////////////////////
 
 ///////////////////////////////////////////////////////////////////////////////
-// Uncomment to customize level names (e.g. "MT TRACE")
+// Uncomment to customize level names (e.g. "MY TRACE")
 //
 // #define SPDLOG_LEVEL_NAMES { "MY TRACE", "MY DEBUG", "MY INFO", "MY WARNING",
 // "MY ERROR", "MY CRITICAL", "OFF" }
 ///////////////////////////////////////////////////////////////////////////////
 
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize the trace level name
+//
+// #define SPDLOG_LEVEL_NAME_TRACE "MY TRACE"
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize the debug level name
+//
+// #define SPDLOG_LEVEL_NAME_DEBUG "MY DEBUG"
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize the info level name
+//
+// #define SPDLOG_LEVEL_NAME_INFO "MY INFO"
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize the warning level name
+//
+// #define SPDLOG_LEVEL_NAME_WARNING "MY WARNING"
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize the error level name
+//
+// #define SPDLOG_LEVEL_NAME_ERROR "MY ERROR"
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize the critical level name
+//
+// #define SPDLOG_LEVEL_NAME_CRITICAL "MY CRITICAL"
+///////////////////////////////////////////////////////////////////////////////
+
+///////////////////////////////////////////////////////////////////////////////
+// Uncomment to customize the off level name
+//
+// #define SPDLOG_LEVEL_NAME_OFF "MY OFF"
+///////////////////////////////////////////////////////////////////////////////
+
 ///////////////////////////////////////////////////////////////////////////////
 // Uncomment to customize short level names (e.g. "MT")
 // These can be longer than one character.
diff --git a/tests/test_misc.cpp b/tests/test_misc.cpp
index 658fe068..1d67e879 100644
--- a/tests/test_misc.cpp
+++ b/tests/test_misc.cpp
@@ -55,14 +55,6 @@ TEST_CASE("level_to_string_view", "[convert_to_string_view")
     REQUIRE(spdlog::level::to_string_view(spdlog::level::off) == "off");
 }
 
-TEST_CASE("set_level_to_string_view", "[set_string_view")
-{
-    spdlog::level::set_string_view(spdlog::level::info, "INF");
-    REQUIRE(spdlog::level::to_string_view(spdlog::level::info) == "INF");
-    spdlog::level::set_string_view(spdlog::level::info, "info"); // set it back
-    REQUIRE(spdlog::level::to_string_view(spdlog::level::info) == "info");
-}
-
 TEST_CASE("to_short_c_str", "[convert_to_short_c_str]")
 {
     REQUIRE(std::string(spdlog::level::to_short_c_str(spdlog::level::trace)) == "T");