diff --git a/find-modules/CMakeLists.txt b/find-modules/CMakeLists.txt
index 53c66147..5bd8e6c2 100644
--- a/find-modules/CMakeLists.txt
+++ b/find-modules/CMakeLists.txt
@@ -26,7 +26,6 @@ set(YCM_FIND_MODULES FindACE.cmake
                      FindLibv4lconvert.cmake
                      FindNVIDIACg.cmake
                      FindODE.cmake
-                     FindOpenCV.cmake
                      FindOpenNI.cmake
                      FindOpenNI2.cmake
                      FindPLXCANAPI.cmake
diff --git a/find-modules/FindOpenCV.cmake b/find-modules/FindOpenCV.cmake
deleted file mode 100644
index 7a3e30f9..00000000
--- a/find-modules/FindOpenCV.cmake
+++ /dev/null
@@ -1,104 +0,0 @@
-# SPDX-FileCopyrightText: 2012-2021 Istituto Italiano di Tecnologia (IIT)
-# SPDX-FileCopyrightText: 2009 Benoit Rat
-# SPDX-License-Identifier: BSD-3-Clause
-
-#[=======================================================================[.rst:
-FindOpenCV
-----------
-
-Find OpenCV - variables set::
-
- OpenCV_FOUND
- OpenCV_LIBS
- OpenCV_INCLUDE_DIRS
-
-This script is a combination from multiple sources that use
-different variable names; the names are reconciled at the end
-of the script.
-
- OpenCV_LIBRARIES is defined, but its use is deprecated. Please use OpenCV_LIBS.
-
-.. todo:: Check if this module is still needed with recent CMake releases.
-.. todo:: Check if the license is correct
-#]=======================================================================]
-
-###########################################################
-#                  Find OpenCV Library
-# See http://sourceforge.net/projects/opencvlibrary/
-#----------------------------------------------------------
-#
-## 1: Setup:
-# The following variables are optionally searched for defaults
-#  OpenCV_DIR:            Base directory of OpenCv tree to use.
-#
-## 2: Variable
-# The following are set after configuration is done:
-#
-#  OpenCV_FOUND
-#  OpenCV_LIBS
-#  OpenCV_INCLUDE_DIR
-#  OpenCV_VERSION (OpenCV_VERSION_MAJOR, OpenCV_VERSION_MINOR, OpenCV_VERSION_PATCH)
-#
-#
-# Deprecated variable are used to maintain backward compatibility with
-# the script of Jan Woetzel (2006/09): www.mip.informatik.uni-kiel.de/~jw
-#  OpenCV_INCLUDE_DIRS
-#  OpenCV_LIBRARIES
-#  OpenCV_LINK_DIRECTORIES
-#
-## 3: Version
-#
-# 2010/04/07 Benoit Rat, Correct a bug when OpenCVConfig.cmake is not found.
-# 2010/03/24 Benoit Rat, Add compatibility for when OpenCVConfig.cmake is not found.
-# 2010/03/22 Benoit Rat, Creation of the script.
-#
-#
-# tested with:
-# - OpenCV 2.1:  MinGW, MSVC2008
-# - OpenCV 2.0:  MinGW, MSVC2008, GCC4
-#
-#
-## 4: Licence:
-#
-# SPDX-FileCopyrightText: 2009 Benoit Rat
-# CopyPolicy: LGPLv2.1
-# 
-#----------------------------------------------------------
-
-# Lorenzo Natale -- Feb 2011
-# Improve compatibility with OpenCV package in Ubuntu 10.10
-# Lorenzo Natale -- March 2011
-# Removing OpenCV_INCLUDE_DIRS from required arguments
-# Since not all version of OpenCV set OpenCV_INCLUDE_DIRS. Problem detected with OpenCV 2.0 OpenCVConfig.cmake
-# directly calls INCLUDE_DIRECTORIES() and does not propagate any OpenCV_INCLUDE_ variable
-
-# let's skip module mode, and see if a OpenCVConfig.cmake file is around
-# this searches in system directories and ${OpenCV_DIR}
-
-include(FindPackageHandleStandardArgs)
-
-set(_OpenCV_FIND_QUIETLY ${OpenCV_FIND_QUIETLY})
-find_package(OpenCV QUIET NO_MODULE)
-set(OpenCV_FIND_QUIETLY ${_OpenCV_FIND_QUIETLY})
-
-if(OpenCV_FOUND)
-    set(OpenCV_CONFIG_MODE true)
-    ## OpenCVConfig.cmake sets OpenCV_LIBS OpenCV_INCLUDE_DIRS
-    ## but we need OpenCV_LIBRARIES
-    if(NOT DEFINED OpenCV_LIBRARIES)
-        set(OpenCV_LIBRARIES ${OpenCV_LIBS})
-        if(NOT COMMAND _YCM_FindOpenCV_variable_deprecated)
-          function(_YCM_FindOpenCV_variable_deprecated _variable)
-            message(DEPRECATION "${_variable} is deprecated, please use ${OpenCV_LIBS} instead.")
-          endfunction()
-          variable_watch(OpenCV_LIBRARIES _YCM_FindOpenCV_variable_deprecated)
-        endif()
-    endif()
-endif()
-
-find_package_handle_standard_args(OpenCV REQUIRED_VARS OpenCV_FOUND CONFIG_MODE)
-
-if(COMMAND set_package_properties)
-    set_package_properties(OpenCV PROPERTIES DESCRIPTION "Open source computer vision library"
-                                             URL "http://opencv.org/")
-endif()
diff --git a/help/manual/ycm-modules.7.rst b/help/manual/ycm-modules.7.rst
index bf3a20f8..09925876 100644
--- a/help/manual/ycm-modules.7.rst
+++ b/help/manual/ycm-modules.7.rst
@@ -82,7 +82,6 @@ Find Package Modules
    /module/FindGLM
    /module/FindGooCanvas
    /module/FindGooCanvasMM
-   /module/FindGSL
    /module/FindGtkDatabox
    /module/FindGtkDataboxMM
    /module/FindI2C
@@ -96,8 +95,6 @@ Find Package Modules
    /module/FindLibv4lconvert
    /module/FindNVIDIACg
    /module/FindODE
-   /module/FindOpenCV
-   /module/FindOpenGL
    /module/FindOpenNI
    /module/FindPLXCANAPI
    /module/FindPortAudio
diff --git a/help/module/FindGSL.rst b/help/module/FindGSL.rst
deleted file mode 100644
index fbd559ef..00000000
--- a/help/module/FindGSL.rst
+++ /dev/null
@@ -1 +0,0 @@
-.. cmake-module:: ../../find-modules/FindGSL.cmake
diff --git a/help/module/FindOpenCV.rst b/help/module/FindOpenCV.rst
deleted file mode 100644
index 1a5d4745..00000000
--- a/help/module/FindOpenCV.rst
+++ /dev/null
@@ -1 +0,0 @@
-.. cmake-module:: ../../find-modules/FindOpenCV.cmake
diff --git a/help/module/FindOpenGL.rst b/help/module/FindOpenGL.rst
deleted file mode 100644
index 006dd84e..00000000
--- a/help/module/FindOpenGL.rst
+++ /dev/null
@@ -1 +0,0 @@
-.. cmake-module:: ../../find-modules/FindOpenGL.cmake