diff --git a/CMakeLists.txt b/CMakeLists.txt
index b2601623..e2e0691d 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -67,7 +67,7 @@ ENDIF()
 
 # -- [ Determine target processor
 SET(CPUINFO_TARGET_PROCESSOR "${CMAKE_SYSTEM_PROCESSOR}")
-IF(CMAKE_SYSTEM_NAME MATCHES "FreeBSD" AND CPUINFO_TARGET_PROCESSOR STREQUAL "amd64")
+IF(CMAKE_SYSTEM_NAME MATCHES "(FreeBSD|NetBSD)" AND CPUINFO_TARGET_PROCESSOR STREQUAL "amd64")
   SET(CPUINFO_TARGET_PROCESSOR "AMD64")
 ENDIF()
 IF(IS_APPLE_OS AND CMAKE_OSX_ARCHITECTURES MATCHES "^(x86_64|arm64.*)$")
@@ -108,7 +108,7 @@ IF(NOT CMAKE_SYSTEM_NAME)
       "Target operating system is not specified. "
       "cpuinfo will compile, but cpuinfo_initialize() will always fail.")
   SET(CPUINFO_SUPPORTED_PLATFORM FALSE)
-ELSEIF(NOT CMAKE_SYSTEM_NAME MATCHES "^(Windows|WindowsStore|CYGWIN|MSYS|Darwin|Linux|Android|FreeBSD|Emscripten)$")
+ELSEIF(NOT CMAKE_SYSTEM_NAME MATCHES "^(Windows|WindowsStore|CYGWIN|MSYS|Darwin|Linux|Android|FreeBSD|NetBSD|Emscripten)$")
   IF(${CMAKE_VERSION} VERSION_GREATER_EQUAL "3.14" AND NOT IS_APPLE_OS)
     MESSAGE(WARNING
       "Target operating system \"${CMAKE_SYSTEM_NAME}\" is not supported in cpuinfo. "
@@ -181,7 +181,7 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
       LIST(APPEND CPUINFO_SRCS src/x86/mach/init.c)
     ELSEIF(CMAKE_SYSTEM_NAME MATCHES "^(Windows|WindowsStore|CYGWIN|MSYS)$")
       LIST(APPEND CPUINFO_SRCS src/x86/windows/init.c)
-    ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+    ELSEIF(CMAKE_SYSTEM_NAME MATCHES "(FreeBSD|NetBSD)")
       LIST(APPEND CPUINFO_SRCS src/x86/freebsd/init.c)
     ENDIF()
   ELSEIF(CMAKE_SYSTEM_NAME MATCHES "^Windows" AND CPUINFO_TARGET_PROCESSOR MATCHES "^(ARM64|arm64)$")
@@ -240,11 +240,11 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
       src/linux/processors.c)
   ELSEIF(IS_APPLE_OS)
     LIST(APPEND CPUINFO_SRCS src/mach/topology.c)
-  ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+  ELSEIF(CMAKE_SYSTEM_NAME MATCHES "(FreeBSD|NetBSD)")
     LIST(APPEND CPUINFO_SRCS src/freebsd/topology.c)
   ENDIF()
 
-  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+  IF(CMAKE_SYSTEM_NAME STREQUAL "Linux" OR CMAKE_SYSTEM_NAME STREQUAL "Android" OR CMAKE_SYSTEM_NAME MATCHES "(FreeBSD|NetBSD)")
     SET(CMAKE_THREAD_PREFER_PTHREAD TRUE)
     SET(THREADS_PREFER_PTHREAD_FLAG TRUE)
     FIND_PACKAGE(Threads REQUIRED)
@@ -309,7 +309,7 @@ IF(CPUINFO_SUPPORTED_PLATFORM)
     TARGET_LINK_LIBRARIES(cpuinfo_internals PUBLIC ${CMAKE_THREAD_LIBS_INIT})
     TARGET_COMPILE_DEFINITIONS(cpuinfo PRIVATE _GNU_SOURCE=1)
     TARGET_COMPILE_DEFINITIONS(cpuinfo_internals PRIVATE _GNU_SOURCE=1)
-  ELSEIF(CMAKE_SYSTEM_NAME STREQUAL "FreeBSD")
+  ELSEIF(CMAKE_SYSTEM_NAME MATCHES "(FreeBSD|NetBSD)")
     TARGET_LINK_LIBRARIES(cpuinfo PUBLIC ${CMAKE_THREAD_LIBS_INIT})
     TARGET_LINK_LIBRARIES(cpuinfo_internals PUBLIC ${CMAKE_THREAD_LIBS_INIT})
   ENDIF()