diff --git a/CMakeLists.txt b/CMakeLists.txt
index 1e27b1caf1..67f380bc23 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -96,6 +96,7 @@ option(USE_SYSTEM_LIBUSB "Use the system libusb (instead of the bundled libusb)"
 option(USE_SYSTEM_CPP_JWT "Use the system cpp-jwt (instead of the bundled one)" OFF)
 option(USE_SYSTEM_SOUNDTOUCH "Use the system SoundTouch (instead of the bundled one)" OFF)
 option(USE_SYSTEM_CPP_HTTPLIB "Use the system cpp-httplib (instead of the bundled one)" OFF)
+option(USE_SYSTEM_JSON "Use the system JSON (nlohmann-json3) package (instead of the bundled one)" OFF)
 
 if (CITRA_USE_PRECOMPILED_HEADERS)
     message(STATUS "Using Precompiled Headers.")
diff --git a/externals/CMakeLists.txt b/externals/CMakeLists.txt
index 7e3a0e7d7d..5a2548bcaf 100644
--- a/externals/CMakeLists.txt
+++ b/externals/CMakeLists.txt
@@ -175,7 +175,16 @@ endif()
 
 # JSON
 add_library(json-headers INTERFACE)
-target_include_directories(json-headers INTERFACE ./json)
+if (USE_SYSTEM_JSON)
+    find_package(nlohmann_json REQUIRED)
+    target_link_libraries(json-headers INTERFACE nlohmann_json::nlohmann_json)
+    get_target_property(NLOHMANN_PREFIX nlohmann_json::nlohmann_json INTERFACE_INCLUDE_DIRECTORIES)
+    # The nlohmann-json3 package expects "#include <nlohmann/json.hpp>"
+    # Citra uses "#include <json.hpp>" so we have to add this manually
+    target_include_directories(json-headers SYSTEM INTERFACE "${NLOHMANN_PREFIX}/nlohmann")
+else()
+    target_include_directories(json-headers SYSTEM INTERFACE ./json)
+endif()
 
 # OpenSSL
 if (USE_SYSTEM_OPENSSL)