diff --git a/CMakeLists.txt b/CMakeLists.txt
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -229,26 +229,13 @@
 
 ### FFTW (optional) #####################################
 IF (ENABLE_FFTW)
-FIND_LIBRARY (FFTW_LIBRARIES fftw3
-        PATHS
-        /usr/lib
-        /usr/local/lib
-)
-FIND_PATH (FFTW_INCLUDE_DIR fftw3.h
-	/usr/include
-	/usr/local/include
-)
-IF (FFTW_LIBRARIES AND FFTW_INCLUDE_DIR)
-	SET (FFTW_FOUND TRUE)
-ELSE ()
-	SET (FFTW_FOUND FALSE)
-ENDIF ()
-IF (FFTW_FOUND)
-	MESSAGE (STATUS "Found FFTW 3 Library: ${FFTW_INCLUDE_DIR} ${FFTW_LIBRARIES}")
-	add_definitions (-DHAVE_FFTW3)
-ELSE ()
-	MESSAGE (STATUS "FFTW 3 Library NOT FOUND")
-ENDIF ()
+	FIND_PACKAGE (FFTW3)
+	IF (FFTW3_FOUND)
+		MESSAGE (STATUS "Found FFTW 3 Library: ${FFTW3_INCLUDE_DIR} ${FFTW3_LIBRARIES}")
+		add_definitions (-DHAVE_FFTW3)
+	ELSE ()
+		MESSAGE (STATUS "FFTW 3 Library NOT FOUND")
+	ENDIF ()
 ELSE ()
 	MESSAGE (STATUS "FFTW 3 Library DISABLED")
 ENDIF ()
diff --git a/cmake/FindFFTW3.cmake b/cmake/FindFFTW3.cmake
new file mode 100644
--- /dev/null
+++ b/cmake/FindFFTW3.cmake
@@ -0,0 +1,64 @@
+#=============================================================================
+# Copyright (c) 2019 Harald Sitter <sitter@kde.org>
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions
+# are met:
+#
+# 1. Redistributions of source code must retain the copyright
+#    notice, this list of conditions and the following disclaimer.
+# 2. Redistributions in binary form must reproduce the copyright
+#    notice, this list of conditions and the following disclaimer in the
+#    documentation and/or other materials provided with the distribution.
+# 3. The name of the author may not be used to endorse or promote products
+#    derived from this software without specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND ANY EXPRESS OR
+# IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES
+# OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED.
+# IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY DIRECT, INDIRECT,
+# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT
+# NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+# DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+# THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+# (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
+# THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+#=============================================================================
+
+find_package(PkgConfig QUIET)
+pkg_check_modules(PC_FFTW3 fftw3 QUIET)
+
+find_library(FFTW3_LIBRARIES
+    NAMES fftw3
+    HINTS ${PC_FFTW3_LIBRARY_DIRS}
+)
+
+find_path(FFTW3_INCLUDE_DIR
+    NAMES fftw3.h
+    HINTS ${PC_FFTW3_INCLUDE_DIRS}
+    PATH_SUFFIXES fftw3
+)
+
+include(FindPackageHandleStandardArgs)
+find_package_handle_standard_args(FFTW3
+    REQUIRED_VARS
+        FFTW3_LIBRARIES
+        FFTW3_INCLUDE_DIR
+)
+
+if(FFTW3_FOUND AND NOT TARGET FFTW3::FFTW3)
+    add_library(FFTW3::FFTW3 UNKNOWN IMPORTED)
+    set_target_properties(FFTW3::FFTW3 PROPERTIES
+        IMPORTED_LOCATION "${FFTW3_LIBRARIES}"
+        INTERFACE_COMPILE_OPTIONS "${PC_FFTW3_CFLAGS}"
+        INTERFACE_INCLUDE_DIRECTORIES "${FFTW3_INCLUDE_DIR}"
+    )
+endif()
+
+mark_as_advanced(FFTW3_LIBRARIES FFTW3_INCLUDE_DIR)
+
+include(FeatureSummary)
+set_package_properties(FFTW3 PROPERTIES
+    DESCRIPTION "FFT library"
+    URL "http://fftw.org/"
+)
diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -401,8 +401,8 @@
 IF (HDF5_FOUND)
 	target_link_libraries( labplot2lib ${HDF5_LIBRARIES} )
 ENDIF ()
-IF (FFTW_FOUND)
-	target_link_libraries( labplot2lib ${FFTW_LIBRARIES} )
+IF (FFTW3_FOUND)
+	target_link_libraries( labplot2lib ${FFTW3_LIBRARIES} )
 ENDIF ()
 IF (NETCDF_FOUND)
 	target_link_libraries( labplot2lib ${NETCDF_LIBRARY} )
diff --git a/tests/analysis/convolution/CMakeLists.txt b/tests/analysis/convolution/CMakeLists.txt
--- a/tests/analysis/convolution/CMakeLists.txt
+++ b/tests/analysis/convolution/CMakeLists.txt
@@ -4,8 +4,8 @@
 target_link_libraries(convolutiontest Qt5::Test)
 target_link_libraries(convolutiontest KF5::Archive KF5::XmlGui ${GSL_LIBRARIES} ${GSL_CBLAS_LIBRARIES})
 
-IF (FFTW_FOUND)
-	target_link_libraries(convolutiontest ${FFTW_LIBRARIES})
+IF (FFTW3_FOUND)
+	target_link_libraries(convolutiontest ${FFTW3_LIBRARIES})
 ENDIF ()
 
 target_link_libraries(convolutiontest labplot2lib)
diff --git a/tests/analysis/correlation/CMakeLists.txt b/tests/analysis/correlation/CMakeLists.txt
--- a/tests/analysis/correlation/CMakeLists.txt
+++ b/tests/analysis/correlation/CMakeLists.txt
@@ -4,8 +4,8 @@
 target_link_libraries(correlationtest Qt5::Test)
 target_link_libraries(correlationtest KF5::Archive KF5::XmlGui ${GSL_LIBRARIES} ${GSL_CBLAS_LIBRARIES})
 
-IF (FFTW_FOUND)
-	target_link_libraries(correlationtest ${FFTW_LIBRARIES})
+IF (FFTW3_FOUND)
+	target_link_libraries(correlationtest ${FFTW3_LIBRARIES})
 ENDIF ()
 
 target_link_libraries(correlationtest labplot2lib)
diff --git a/tests/import_export/ASCII/CMakeLists.txt b/tests/import_export/ASCII/CMakeLists.txt
--- a/tests/import_export/ASCII/CMakeLists.txt
+++ b/tests/import_export/ASCII/CMakeLists.txt
@@ -17,8 +17,8 @@
 IF (HDF5_FOUND)
 	target_link_libraries(asciifiltertest ${HDF5_C_LIBRARIES} )
 ENDIF ()
-IF (FFTW_FOUND)
-	target_link_libraries(asciifiltertest ${FFTW_LIBRARIES} )
+IF (FFTW3_FOUND)
+	target_link_libraries(asciifiltertest ${FFTW3_LIBRARIES} )
 ENDIF ()
 IF (NETCDF_FOUND)
 	target_link_libraries(asciifiltertest ${NETCDF_LIBRARY} )
diff --git a/tests/import_export/JSON/CMakeLists.txt b/tests/import_export/JSON/CMakeLists.txt
--- a/tests/import_export/JSON/CMakeLists.txt
+++ b/tests/import_export/JSON/CMakeLists.txt
@@ -17,8 +17,8 @@
 IF (HDF5_FOUND)
     target_link_libraries(jsonfiltertest ${HDF5_C_LIBRARIES} )
 ENDIF ()
-IF (FFTW_FOUND)
-    target_link_libraries(jsonfiltertest ${FFTW_LIBRARIES} )
+IF (FFTW3_FOUND)
+    target_link_libraries(jsonfiltertest ${FFTW3_LIBRARIES} )
 ENDIF ()
 IF (NETCDF_FOUND)
     target_link_libraries(jsonfiltertest ${NETCDF_LIBRARY} )
diff --git a/tests/import_export/MQTT/CMakeLists.txt b/tests/import_export/MQTT/CMakeLists.txt
--- a/tests/import_export/MQTT/CMakeLists.txt
+++ b/tests/import_export/MQTT/CMakeLists.txt
@@ -19,8 +19,8 @@
 IF (HDF5_FOUND)
 	target_link_libraries(mqttunittest ${HDF5_C_LIBRARIES} )
 ENDIF ()
-IF (FFTW_FOUND)
-	target_link_libraries(mqttunittest ${FFTW_LIBRARIES} )
+IF (FFTW3_FOUND)
+	target_link_libraries(mqttunittest ${FFTW3_LIBRARIES} )
 ENDIF ()
 IF (NETCDF_FOUND)
 	target_link_libraries(mqttunittest ${NETCDF_LIBRARY} )
diff --git a/tests/import_export/project/CMakeLists.txt b/tests/import_export/project/CMakeLists.txt
--- a/tests/import_export/project/CMakeLists.txt
+++ b/tests/import_export/project/CMakeLists.txt
@@ -17,8 +17,8 @@
 IF (HDF5_FOUND)
 	target_link_libraries(projectimporttest ${HDF5_C_LIBRARIES} )
 ENDIF ()
-IF (FFTW_FOUND)
-	target_link_libraries(projectimporttest ${FFTW_LIBRARIES} )
+IF (FFTW3_FOUND)
+	target_link_libraries(projectimporttest ${FFTW3_LIBRARIES} )
 ENDIF ()
 IF (NETCDF_FOUND)
 	target_link_libraries(projectimporttest ${NETCDF_LIBRARY} )
diff --git a/tests/nsl/dft/CMakeLists.txt b/tests/nsl/dft/CMakeLists.txt
--- a/tests/nsl/dft/CMakeLists.txt
+++ b/tests/nsl/dft/CMakeLists.txt
@@ -4,8 +4,8 @@
 target_link_libraries(nsldfttest Qt5::Test)
 target_link_libraries(nsldfttest ${GSL_LIBRARIES} ${GSL_CBLAS_LIBRARIES})
 
-IF (FFTW_FOUND)
-	target_link_libraries(nsldfttest ${FFTW_LIBRARIES})
+IF (FFTW3_FOUND)
+	target_link_libraries(nsldfttest ${FFTW3_LIBRARIES})
 ENDIF ()
 
 target_link_libraries(nsldfttest labplot2lib)