diff --git a/math/kissfft/CMakeLists.txt b/math/kissfft/CMakeLists.txt
new file mode 100644
index 000000000..07c8e5f06
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+++ b/math/kissfft/CMakeLists.txt
@@ -0,0 +1,74 @@
+# ##############################################################################
+# apps/math/kissfft/CMakeLists.txt
+#
+# Licensed to the Apache Software Foundation (ASF) under one or more contributor
+# license agreements.  See the NOTICE file distributed with this work for
+# additional information regarding copyright ownership.  The ASF licenses this
+# file to you under the Apache License, Version 2.0 (the "License"); you may not
+# use this file except in compliance with the License.  You may obtain a copy of
+# the License at
+#
+# http://www.apache.org/licenses/LICENSE-2.0
+#
+# Unless required by applicable law or agreed to in writing, software
+# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
+# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.  See the
+# License for the specific language governing permissions and limitations under
+# the License.
+#
+# ##############################################################################
+
+if(CONFIG_MATH_KISSFFT)
+
+  # ############################################################################
+  # Config and Fetch kissfft lib
+  # ############################################################################
+
+  set(KISSFFT_DIR ${CMAKE_CURRENT_LIST_DIR}/kissfft)
+
+  if(NOT EXISTS ${KISSFFT_DIR})
+    set(KISSFFT_URL
+        https://github.com/mborgerding/kissfft/archive/refs/tags/v130.zip)
+    FetchContent_Declare(
+      kissfft_fetch
+      URL ${KISSFFT_URL} SOURCE_DIR ${KISSFFT_DIR} BINARY_DIR
+          ${CMAKE_BINARY_DIR}/apps/math/kissfft/kissfft
+      DOWNLOAD_NO_PROGRESS true
+      TIMEOUT 30)
+
+    FetchContent_GetProperties(kissfft_fetch)
+
+    if(NOT kissfft_fetch_POPULATED)
+      FetchContent_Populate(kissfft_fetch)
+
+      # Apply the patch after fetching the content
+      execute_process(
+        COMMAND ${CMAKE_COMMAND} -E echo "Applying patch to kissfft"
+        WORKING_DIRECTORY ${CMAKE_CURRENT_LIST_DIR})
+
+      execute_process(COMMAND patch -d ${KISSFFT_DIR} -p1 <
+                              ${CMAKE_CURRENT_LIST_DIR}/kissfft.patch)
+    endif()
+  endif()
+
+  # ############################################################################
+  # Sources
+  # ############################################################################
+
+  set(CSRCS ${KISSFFT_DIR}/kiss_fft.c ${KISSFFT_DIR}/tools/kiss_fftr.c)
+
+  # ############################################################################
+  # Include Directory
+  # ############################################################################
+
+  set(INCDIR ${CMAKE_CURRENT_LIST_DIR}/kissfft)
+
+  # ############################################################################
+  # Library Configuration
+  # ############################################################################
+
+  nuttx_add_library(kissfft STATIC)
+  target_sources(kissfft PRIVATE ${CSRCS})
+  target_include_directories(kissfft PUBLIC ${INCDIR})
+
+endif()