diff --git a/ports/rmlui/add-robin-hood.patch b/ports/rmlui/add-robin-hood.patch
new file mode 100644
index 00000000000..4a39a8a5a1a
--- /dev/null
+++ b/ports/rmlui/add-robin-hood.patch
@@ -0,0 +1,38 @@
+diff --git a/CMake/FileList.cmake b/CMake/FileList.cmake
+index 9c3042c..c3820df 100644
+--- a/CMake/FileList.cmake
++++ b/CMake/FileList.cmake
+@@ -133,7 +133,6 @@ set(Core_PUB_HDR_FILES
+     ${PROJECT_SOURCE_DIR}/Include/RmlUi/Core/ComputedValues.h
+     ${PROJECT_SOURCE_DIR}/Include/RmlUi/Core/Containers/chobo/flat_map.hpp
+     ${PROJECT_SOURCE_DIR}/Include/RmlUi/Core/Containers/chobo/flat_set.hpp
+-    ${PROJECT_SOURCE_DIR}/Include/RmlUi/Core/Containers/robin_hood.h
+     ${PROJECT_SOURCE_DIR}/Include/RmlUi/Core/Context.h
+     ${PROJECT_SOURCE_DIR}/Include/RmlUi/Core/ContextInstancer.h
+     ${PROJECT_SOURCE_DIR}/Include/RmlUi/Core/ConvolutionFilter.h
+diff --git a/CMakeLists.txt b/CMakeLists.txt
+index 62432f1..d9287c9 100644
+--- a/CMakeLists.txt
++++ b/CMakeLists.txt
+@@ -387,6 +387,8 @@ if( ENABLE_SVG_PLUGIN )
+ 	message("-- Can SVG plugin be enabled - yes - lunasvg library found")
+ endif()
+ 
++find_path(ROBIN_HOOD_INCLUDE_DIR robin_hood.h)
++include_directories(${ROBIN_HOOD_INCLUDE_DIR})
+ 
+ if(NOT BUILD_FRAMEWORK)
+ #===================================
+diff --git a/Include/RmlUi/Config/Config.h b/Include/RmlUi/Config/Config.h
+index dc42753..5249e1d 100644
+--- a/Include/RmlUi/Config/Config.h
++++ b/Include/RmlUi/Config/Config.h
+@@ -57,7 +57,7 @@
+ #else
+ #include "../Core/Containers/chobo/flat_map.hpp"
+ #include "../Core/Containers/chobo/flat_set.hpp"
+-#include "../Core/Containers/robin_hood.h"
++#include <robin_hood.h>
+ #endif	// RMLUI_NO_THIRDPARTY_CONTAINERS
+ 
+ namespace Rml {
diff --git a/ports/rmlui/portfile.cmake b/ports/rmlui/portfile.cmake
new file mode 100644
index 00000000000..cf9ec6f0570
--- /dev/null
+++ b/ports/rmlui/portfile.cmake
@@ -0,0 +1,56 @@
+vcpkg_from_github(
+	OUT_SOURCE_PATH SOURCE_PATH
+	REPO mikke89/RmlUi
+	REF 4.1
+	SHA512 f79bd30104c42469142e4c79a81f120c61f5bd3ae918df9847fa42d05fcda372d3adb5f6884c81c8517a440a81235e70ffcdde8d98751a14d2e4265fc2051a01
+	HEAD_REF master
+	PATCHES
+		add-robin-hood.patch
+)
+
+vcpkg_check_features(OUT_FEATURE_OPTIONS FEATURE_OPTIONS
+	FEATURES 
+		lua             BUILD_LUA_BINDINGS
+	INVERTED_FEATURES
+		freetype        NO_FONT_INTERFACE_DEFAULT
+)
+
+# Remove built-in header, instead we use vcpkg version (from robin-hood-hashing port)
+file(REMOVE ${SOURCE_PATH}/Include/RmlUi/Core/Containers/robin_hood.h)
+
+vcpkg_cmake_configure(
+	SOURCE_PATH ${SOURCE_PATH}
+	OPTIONS
+		${FEATURE_OPTIONS}
+)
+
+vcpkg_cmake_install()
+vcpkg_cmake_config_fixup(
+	CONFIG_PATH  lib/RmlUi/cmake
+)
+vcpkg_copy_pdbs()
+
+file(REMOVE_RECURSE 
+	${CURRENT_PACKAGES_DIR}/debug/include
+	${CURRENT_PACKAGES_DIR}/debug/lib/RmlUi
+	${CURRENT_PACKAGES_DIR}/lib/RmlUi
+)
+
+if(VCPKG_LIBRARY_LINKAGE STREQUAL "static")
+	vcpkg_replace_string(${CURRENT_PACKAGES_DIR}/include/RmlUi/Core/Header.h
+		"#if !defined RMLUI_STATIC_LIB"
+		"#if 0"
+	)
+	vcpkg_replace_string(${CURRENT_PACKAGES_DIR}/include/RmlUi/Debugger/Header.h
+		"#if !defined RMLUI_STATIC_LIB"
+		"#if 0"
+	)
+	if ("lua" IN_LIST FEATURES)
+		vcpkg_replace_string(${CURRENT_PACKAGES_DIR}/include/RmlUi/Lua/Header.h
+			"#if !defined RMLUI_STATIC_LIB"
+			"#if 0"
+		)
+	endif()
+endif()
+
+file(INSTALL ${SOURCE_PATH}/LICENSE.txt DESTINATION ${CURRENT_PACKAGES_DIR}/share/${PORT} RENAME copyright)
diff --git a/ports/rmlui/vcpkg.json b/ports/rmlui/vcpkg.json
new file mode 100644
index 00000000000..9b42867c635
--- /dev/null
+++ b/ports/rmlui/vcpkg.json
@@ -0,0 +1,34 @@
+{
+  "name": "rmlui",
+  "version": "4.1",
+  "maintainers": "Michael R. P. Ragazzon <mikke89@users.noreply.github.com>",
+  "description": "RmlUi is the C++ user interface library based on the HTML and CSS standards, designed as a complete solution for any project's interface needs.",
+  "homepage": "https://github.com/mikke89/RmlUi",
+  "documentation": "https://mikke89.github.io/RmlUiDoc/",
+  "license": "MIT",
+  "dependencies": [
+    "robin-hood-hashing",
+    "vcpkg-cmake",
+    "vcpkg-cmake-config"
+  ],
+  "default-features": [
+    "freetype"
+  ],
+  "features": {
+    "freetype": {
+      "description": "Include font engine based on FreeType",
+      "dependencies": [
+        {
+          "name": "freetype",
+          "default-features": false
+        }
+      ]
+    },
+    "lua": {
+      "description": "Build Lua bindings",
+      "dependencies": [
+        "lua"
+      ]
+    }
+  }
+}
diff --git a/versions/baseline.json b/versions/baseline.json
index 4921454024e..ef0805696f5 100644
--- a/versions/baseline.json
+++ b/versions/baseline.json
@@ -5524,6 +5524,10 @@
       "baseline": "0.3.0",
       "port-version": 0
     },
+    "rmlui": {
+      "baseline": "4.1",
+      "port-version": 0
+    },
     "roaring": {
       "baseline": "2019-03-05-2",
       "port-version": 0
diff --git a/versions/r-/rmlui.json b/versions/r-/rmlui.json
new file mode 100644
index 00000000000..f3c15b656f8
--- /dev/null
+++ b/versions/r-/rmlui.json
@@ -0,0 +1,9 @@
+{
+  "versions": [
+    {
+      "git-tree": "83f463f3ebcc4e415d6903bea260fb1601a14dd2",
+      "version": "4.1",
+      "port-version": 0
+    }
+  ]
+}