diff --git a/src/parallel b/src/parallel
index a6f8d89e..e13bf39d 100755
--- a/src/parallel
+++ b/src/parallel
@@ -2891,6 +2891,8 @@ sub no_of_cpus {
         $no_of_cpus = no_of_cpus_gnu_linux() || no_of_cores_gnu_linux();
     } elsif ($^O eq 'freebsd') {
         $no_of_cpus = no_of_cpus_freebsd();
+    } elsif ($^O eq 'netbsd') {
+        $no_of_cpus = no_of_cpus_netbsd();
     } elsif ($^O eq 'solaris') {
         $no_of_cpus = no_of_cpus_solaris();
     } elsif ($^O eq 'aix') {
@@ -2899,6 +2901,7 @@ sub no_of_cpus {
 	$no_of_cpus = no_of_cpus_darwin();
     } else {
 	$no_of_cpus = (no_of_cpus_freebsd()
+		       || no_of_cpus_netbsd()
 		       || no_of_cpus_darwin()
 		       || no_of_cpus_solaris()
 		       || no_of_cpus_aix()
@@ -2923,6 +2926,8 @@ sub no_of_cores {
 	$no_of_cores = no_of_cores_gnu_linux();
     } elsif ($^O eq 'freebsd') {
         $no_of_cores = no_of_cores_freebsd();
+    } elsif ($^O eq 'netbsd') {
+        $no_of_cores = no_of_cores_netbsd();
     } elsif ($^O eq 'openbsd') {
         $no_of_cores = no_of_cores_openbsd();
     } elsif ($^O eq 'solaris') {
@@ -2933,6 +2938,7 @@ sub no_of_cores {
 	$no_of_cores = no_of_cores_darwin();
     } else {
 	$no_of_cores = (no_of_cores_freebsd()
+			|| no_of_cores_netbsd()
 			|| no_of_cores_openbsd()
 			|| no_of_cores_darwin()
 			|| no_of_cores_solaris()
@@ -3033,6 +3039,24 @@ sub no_of_cores_freebsd {
     return $no_of_cores;
 }
 
+sub no_of_cpus_netbsd {
+    # Returns:
+    #   Number of physical CPUs on NetBSD
+    #   undef if not NetBSD
+    my $no_of_cpus = `sysctl -n hw.ncpu`;
+    chomp $no_of_cpus;
+    return $no_of_cpus;
+}
+
+sub no_of_cores_netbsd {
+    # Returns:
+    #   Number of CPU cores on NetBSD
+    #   undef if not NetBSD
+    my $no_of_cores = `sysctl -n hw.ncpu`;
+    chomp $no_of_cores;
+    return $no_of_cores;
+}
+
 sub no_of_cores_openbsd {
     # Returns:
     #   Number of CPU cores on OpenBSD