diff --git a/CMakeLists.txt b/CMakeLists.txt
index f353b50..f3bdf18 100644
--- a/CMakeLists.txt
+++ b/CMakeLists.txt
@@ -282,10 +282,11 @@ if(NOT DEFINED SNMALLOC_ONLY_HEADER_LIBRARY)
     foreach(TEST ${TESTS})
       if (WIN32
           OR (CMAKE_SYSTEM_NAME STREQUAL NetBSD)
-          OR (CMAKE_SYSTEM_NAME STREQUAL OpenBSD))
+          OR (CMAKE_SYSTEM_NAME STREQUAL OpenBSD)
+          OR (CMAKE_SYSTEM_NAME STREQUAL DragonFly))
         # Windows does not support aligned allocation well enough
         # for pass through.
-        # NetBSD and OpenBSD do not support malloc*size calls.
+        # NetBSD, OpenBSD and DragonFlyBSD do not support malloc*size calls.
         set(FLAVOURS 1;16;oe)
       else()
         set(FLAVOURS 1;16;oe;malloc)
diff --git a/src/pal/pal.h b/src/pal/pal.h
index 9ce3ffc..4ed353f 100644
--- a/src/pal/pal.h
+++ b/src/pal/pal.h
@@ -10,6 +10,7 @@
 #endif
 #if !defined(OPEN_ENCLAVE) || defined(OPEN_ENCLAVE_SIMULATION)
 #  include "pal_apple.h"
+#  include "pal_dragonfly.h"
 #  include "pal_freebsd.h"
 #  include "pal_freebsd_kernel.h"
 #  include "pal_haiku.h"
@@ -43,6 +44,8 @@ namespace snmalloc
     PALOpenBSD;
 #  elif defined(__sun)
     PALSolaris;
+#  elif defined(__DragonFly__)
+    PALDragonfly;
 #  else
 #    error Unsupported platform
 #  endif
diff --git a/src/pal/pal_dragonfly.h b/src/pal/pal_dragonfly.h
new file mode 100644
index 0000000..f0c3daf
--- /dev/null
+++ b/src/pal/pal_dragonfly.h
@@ -0,0 +1,30 @@
+#pragma once
+
+#if defined(__DragonFly__) && !defined(_KERNEL)
+#  include "pal_bsd.h"
+
+namespace snmalloc
+{
+  /**
+   * DragonflyBSD-specific platform abstraction layer.
+   *
+   * This adds DragonFlyBSD-specific aligned allocation to the BSD
+   * implementation.
+   */
+  class PALDragonfly : public PALBSD<PALDragonfly>
+  {
+  public:
+    /**
+     * Bitmap of PalFeatures flags indicating the optional features that this
+     * PAL supports.
+     *
+     * The DragonflyBSD PAL does not currently add any features beyond
+     * of those of the BSD Pal.
+     * Like FreeBSD, MAP_NORESERVE is implicit.
+     * This field is declared explicitly to remind anyone modifying this class
+     * to add new features that they should add any required feature flags.
+     */
+    static constexpr uint64_t pal_features = PALPOSIX::pal_features;
+  };
+} // namespace snmalloc
+#endif