diff --git a/.github/workflows/test.yml b/.github/workflows/test.yml
index b6767e71b1..4759426bb4 100644
--- a/.github/workflows/test.yml
+++ b/.github/workflows/test.yml
@@ -241,7 +241,6 @@ jobs:
           sudo add-apt-repository ppa:neovim-ppa/stable
           sudo apt-get install -y \
             libluajit-5.1-dev \
-            libmsgpack-dev \
             libtermkey-dev \
             libunibilium-dev \
             libuv1-dev \
diff --git a/BUILD.md b/BUILD.md
index 8ae13b295e..895aec5fd1 100644
--- a/BUILD.md
+++ b/BUILD.md
@@ -84,7 +84,7 @@ make deps
       - Right-click _CMakeLists.txt → Delete Cache_.
       - Right-click _CMakeLists.txt → Generate Cache_.
     - If you see an "access violation" from `ntdll`, you can ignore it and continue.
-4. If you see an error like `msgpackc.dll not found`, try the `nvim.exe (Install)` target. Then switch back to `nvim.exe (bin\nvim.exe)`.
+4. If you see an error like `uv.dll not found`, try the `nvim.exe (Install)` target. Then switch back to `nvim.exe (bin\nvim.exe)`.
 
 ### Windows / MSVC PowerShell
 
@@ -240,7 +240,7 @@ cmake --build build
 ### How to build without "bundled" dependencies
 
 1. Manually install the dependencies:
-    - libuv libluv libutf8proc libvterm luajit lua-lpeg lua-mpack msgpack-c tree-sitter tree-sitter-c tree-sitter-lua tree-sitter-markdown tree-sitter-query tree-sitter-vim tree-sitter-vimdoc unibilium
+    - libuv libluv libutf8proc libvterm luajit lua-lpeg tree-sitter tree-sitter-c tree-sitter-lua tree-sitter-markdown tree-sitter-query tree-sitter-vim tree-sitter-vimdoc unibilium
 2. Run CMake:
    ```sh
    cmake -B build -G Ninja -D CMAKE_BUILD_TYPE=RelWithDebInfo
@@ -260,7 +260,7 @@ cmake --build build
 #### Debian 10 (Buster) example:
 
 ```sh
-sudo apt install luajit libluajit-5.1-dev lua-mpack lua-lpeg libunibilium-dev libmsgpack-dev
+sudo apt install luajit libluajit-5.1-dev lua-lpeg libunibilium-dev
 cmake -S cmake.deps -B .deps -G Ninja -D CMAKE_BUILD_TYPE=RelWithDebInfo -DUSE_BUNDLED=OFF -DUSE_BUNDLED_LIBUV=ON -DUSE_BUNDLED_LUV=ON -DUSE_BUNDLED_LIBVTERM=ON -DUSE_BUNDLED_TS=ON -DUSE_BUNDLED_UTF8PROC=ON
 cmake --build .deps
 cmake -B build -G Ninja -D CMAKE_BUILD_TYPE=RelWithDebInfo
diff --git a/cmake.deps/CMakeLists.txt b/cmake.deps/CMakeLists.txt
index 3c4a28f9ce..05db090765 100644
--- a/cmake.deps/CMakeLists.txt
+++ b/cmake.deps/CMakeLists.txt
@@ -33,7 +33,6 @@ option(USE_BUNDLED_LPEG "Use the bundled lpeg." ${USE_BUNDLED})
 option(USE_BUNDLED_LUA "Use the bundled version of lua." OFF)
 option(USE_BUNDLED_LUAJIT "Use the bundled version of luajit." ${USE_BUNDLED})
 option(USE_BUNDLED_LUV "Use the bundled version of luv." ${USE_BUNDLED})
-option(USE_BUNDLED_MSGPACK "Use the bundled msgpack." ${USE_BUNDLED})
 option(USE_BUNDLED_TS "Use the bundled treesitter runtime." ${USE_BUNDLED})
 option(USE_BUNDLED_TS_PARSERS "Use the bundled treesitter parsers." ${USE_BUNDLED})
 option(USE_BUNDLED_UNIBILIUM "Use the bundled unibilium." ${USE_BUNDLED})
@@ -105,10 +104,6 @@ if(USE_BUNDLED_LIBUV)
   include(BuildLibuv)
 endif()
 
-if(USE_BUNDLED_MSGPACK)
-  include(BuildMsgpack)
-endif()
-
 if(USE_BUNDLED_LUAJIT)
   include(BuildLuajit)
 endif()
diff --git a/cmake.deps/cmake/BuildMsgpack.cmake b/cmake.deps/cmake/BuildMsgpack.cmake
deleted file mode 100644
index 8f82dab140..0000000000
--- a/cmake.deps/cmake/BuildMsgpack.cmake
+++ /dev/null
@@ -1,7 +0,0 @@
-get_externalproject_options(msgpack ${DEPS_IGNORE_SHA})
-ExternalProject_Add(msgpack
-  DOWNLOAD_DIR ${DEPS_DOWNLOAD_DIR}/msgpack
-  CMAKE_ARGS ${DEPS_CMAKE_ARGS}
-    -D MSGPACK_BUILD_TESTS=OFF
-    -D MSGPACK_BUILD_EXAMPLES=OFF
-  ${EXTERNALPROJECT_OPTIONS})
diff --git a/cmake.deps/deps.txt b/cmake.deps/deps.txt
index 9e3585472f..63ec369f76 100644
--- a/cmake.deps/deps.txt
+++ b/cmake.deps/deps.txt
@@ -1,9 +1,6 @@
 LIBUV_URL https://github.com/libuv/libuv/archive/v1.48.0.tar.gz
 LIBUV_SHA256 8c253adb0f800926a6cbd1c6576abae0bc8eb86a4f891049b72f9e5b7dc58f33
 
-MSGPACK_URL https://github.com/msgpack/msgpack-c/archive/c-6.0.1.tar.gz
-MSGPACK_SHA256 58d5fe49d0ee2b374d60a61aabf8028b2c92004e6f11bff04e74b639fc8ad541
-
 LUAJIT_URL https://github.com/LuaJIT/LuaJIT/archive/04dca7911ea255f37be799c18d74c305b921c1a6.tar.gz
 LUAJIT_SHA256 346b028d9ba85e04b7e23a43cc51ec076574d2efc0d271d4355141b0145cd6e0
 
diff --git a/cmake/FindMsgpack.cmake b/cmake/FindMsgpack.cmake
deleted file mode 100644
index 9ef18122ab..0000000000
--- a/cmake/FindMsgpack.cmake
+++ /dev/null
@@ -1,24 +0,0 @@
-find_path2(MSGPACK_INCLUDE_DIR msgpack/version_master.h)
-
-if(MSGPACK_INCLUDE_DIR)
-  file(READ ${MSGPACK_INCLUDE_DIR}/msgpack/version_master.h msgpack_version_h)
-  string(REGEX REPLACE ".*MSGPACK_VERSION_MAJOR +([0-9]+).*" "\\1" MSGPACK_VERSION_MAJOR "${msgpack_version_h}")
-  string(REGEX REPLACE ".*MSGPACK_VERSION_MINOR +([0-9]+).*" "\\1" MSGPACK_VERSION_MINOR "${msgpack_version_h}")
-  string(REGEX REPLACE ".*MSGPACK_VERSION_REVISION +([0-9]+).*" "\\1" MSGPACK_VERSION_REVISION "${msgpack_version_h}")
-  set(MSGPACK_VERSION_STRING "${MSGPACK_VERSION_MAJOR}.${MSGPACK_VERSION_MINOR}.${MSGPACK_VERSION_REVISION}")
-else()
-  set(MSGPACK_VERSION_STRING)
-endif()
-
-find_library2(MSGPACK_LIBRARY NAMES msgpackc msgpack msgpackc_import msgpack-c
-  NAMES_PER_DIR)
-
-mark_as_advanced(MSGPACK_INCLUDE_DIR MSGPACK_LIBRARY)
-
-find_package_handle_standard_args(Msgpack
-  REQUIRED_VARS MSGPACK_LIBRARY MSGPACK_INCLUDE_DIR
-  VERSION_VAR MSGPACK_VERSION_STRING)
-
-add_library(msgpack INTERFACE)
-target_include_directories(msgpack SYSTEM BEFORE INTERFACE ${MSGPACK_INCLUDE_DIR})
-target_link_libraries(msgpack INTERFACE ${MSGPACK_LIBRARY})
diff --git a/contrib/local.mk.example b/contrib/local.mk.example
index 58474a3750..61fc0b95b8 100644
--- a/contrib/local.mk.example
+++ b/contrib/local.mk.example
@@ -48,7 +48,6 @@
 # DEPS_CMAKE_FLAGS += -DUSE_BUNDLED_LIBVTERM=OFF
 # DEPS_CMAKE_FLAGS += -DUSE_BUNDLED_LUAJIT=OFF
 # DEPS_CMAKE_FLAGS += -DUSE_BUNDLED_LUV=OFF
-# DEPS_CMAKE_FLAGS += -DUSE_BUNDLED_MSGPACK=OFF
 # DEPS_CMAKE_FLAGS += -DUSE_BUNDLED_TS=OFF
 # DEPS_CMAKE_FLAGS += -DUSE_BUNDLED_TS_PARSERS=OFF
 # DEPS_CMAKE_FLAGS += -DUSE_BUNDLED_UNIBILIUM=OFF
diff --git a/src/nvim/CMakeLists.txt b/src/nvim/CMakeLists.txt
index eeb7e76616..0fe159f594 100644
--- a/src/nvim/CMakeLists.txt
+++ b/src/nvim/CMakeLists.txt
@@ -32,7 +32,6 @@ find_package(Iconv REQUIRED)
 find_package(Libuv 1.28.0 REQUIRED)
 find_package(Libvterm 0.3.3 REQUIRED)
 find_package(Lpeg REQUIRED)
-find_package(Msgpack 1.0.0 REQUIRED)
 find_package(Treesitter 0.22.6 REQUIRED)
 find_package(Unibilium 2.0 REQUIRED)
 find_package(UTF8proc REQUIRED)
@@ -41,7 +40,6 @@ target_link_libraries(main_lib INTERFACE
   iconv
   libvterm
   lpeg
-  msgpack
   treesitter
   unibilium
   utf8proc)
diff --git a/src/nvim/eval/decode.c b/src/nvim/eval/decode.c
index 1ff8716763..afc2efddf6 100644
--- a/src/nvim/eval/decode.c
+++ b/src/nvim/eval/decode.c
@@ -1010,7 +1010,7 @@ static void typval_parse_enter(mpack_parser_t *parser, mpack_node_t *node)
   }
 }
 
-/// free node which was entered but never exited, due to a nested error
+/// Free node which was entered but never exited, due to a nested error
 ///
 /// Don't bother with typvals as these will be GC:d eventually
 void typval_parser_error_free(mpack_parser_t *parser)
@@ -1109,7 +1109,7 @@ msgpack_to_vim_generic_map: {}
   }
 
   default:
-    // other kinds are handled completely in typval_parse_enter,
+    // other kinds are handled completely in typval_parse_enter
     break;
   }
 }
diff --git a/src/nvim/msgpack_rpc/unpacker.c b/src/nvim/msgpack_rpc/unpacker.c
index 9372754b01..efd9a1a11f 100644
--- a/src/nvim/msgpack_rpc/unpacker.c
+++ b/src/nvim/msgpack_rpc/unpacker.c
@@ -525,12 +525,12 @@ bool unpacker_parse_redraw(Unpacker *p)
   }
 }
 
-/// require complete string. safe to use e.g. in shada as we have loaded a complete shada item into
-/// a linear buffer.
+/// Requires a complete string. safe to use e.g. in shada as we have loaded a
+/// complete shada item into a linear buffer.
 ///
-/// data and size are preserved in cause of failure
+/// Data and size are preserved in cause of failure.
 ///
-/// @return "data" is NULL exact when failure (non-null data and size=0 for
+/// @return "data" is NULL only when failure (non-null data and size=0 for
 /// valid empty string)
 String unpack_string(const char **data, size_t *size)
 {
diff --git a/src/nvim/shada.c b/src/nvim/shada.c
index e5479a7d40..672ad79579 100644
--- a/src/nvim/shada.c
+++ b/src/nvim/shada.c
@@ -1313,9 +1313,9 @@ static char *shada_filename(const char *file)
   return xstrdup(file);
 }
 
-#define PACK_KEY(s) mpack_str(STATIC_CSTR_AS_STRING(KEY_NAME(s)), &sbuf);
-#define KEY_NAME(s) #s
-#define KEY_NAME2(s) KEY_NAME(s)
+#define KEY_NAME_(s) #s
+#define PACK_KEY(s) mpack_str(STATIC_CSTR_AS_STRING(KEY_NAME_(s)), &sbuf);
+#define KEY_NAME(s) KEY_NAME_(s)
 
 #define SHADA_MPACK_FREE_SPACE (4 * MPACK_ITEM_SIZE)
 
@@ -3301,7 +3301,7 @@ shada_read_next_item_start:
     }
     if (it.rc.size == 0) {
       semsg(_(READERR("register",
-                      "has " KEY_NAME2(REG_KEY_CONTENTS) " key with missing or empty array")),
+                      "has " KEY_NAME(REG_KEY_CONTENTS) " key with missing or empty array")),
             initial_fpos);
       goto shada_read_next_item_error;
     }