diff --git a/RDFSharp/Model/RDFNamespaceRegister.cs b/RDFSharp/Model/RDFNamespaceRegister.cs
index fe33b98e..765d180d 100644
--- a/RDFSharp/Model/RDFNamespaceRegister.cs
+++ b/RDFSharp/Model/RDFNamespaceRegister.cs
@@ -75,6 +75,8 @@ static RDFNamespaceRegister()
                     new RDFNamespace(RDFVocabulary.RDFS.PREFIX, RDFVocabulary.RDFS.BASE_URI).SetDereferenceUri(new Uri(RDFVocabulary.RDFS.DEREFERENCE_URI)),
                     new RDFNamespace(RDFVocabulary.OWL.PREFIX, RDFVocabulary.OWL.BASE_URI).SetDereferenceUri(new Uri(RDFVocabulary.OWL.DEREFERENCE_URI)),
                     new RDFNamespace(RDFVocabulary.SHACL.PREFIX, RDFVocabulary.SHACL.BASE_URI).SetDereferenceUri(new Uri(RDFVocabulary.SHACL.DEREFERENCE_URI)),
+                    new RDFNamespace(RDFVocabulary.SWRL.PREFIX, RDFVocabulary.SWRL.BASE_URI).SetDereferenceUri(new Uri(RDFVocabulary.SWRL.DEREFERENCE_URI)),
+                    new RDFNamespace(RDFVocabulary.SWRL.SWRLB.PREFIX, RDFVocabulary.SWRL.SWRLB.BASE_URI).SetDereferenceUri(new Uri(RDFVocabulary.SWRL.SWRLB.DEREFERENCE_URI)),
                     new RDFNamespace(RDFVocabulary.XSD.PREFIX, RDFVocabulary.XSD.BASE_URI).SetDereferenceUri(new Uri(RDFVocabulary.XSD.DEREFERENCE_URI)),
                     new RDFNamespace(RDFVocabulary.XML.PREFIX, RDFVocabulary.XML.BASE_URI).SetDereferenceUri(new Uri(RDFVocabulary.XML.DEREFERENCE_URI)),
 
diff --git a/RDFSharp/Model/Vocabularies/SWRL.cs b/RDFSharp/Model/Vocabularies/SWRL.cs
new file mode 100644
index 00000000..0625a0ae
--- /dev/null
+++ b/RDFSharp/Model/Vocabularies/SWRL.cs
@@ -0,0 +1,78 @@
+/*
+   Copyright 2012-2020 Marco De Salvo
+
+   Licensed under the Apache License, Version 2.0 (the "License");
+   you may not use this file except in compliance with the License.
+   You may obtain a copy of the License at
+
+     http://www.apache.org/licenses/LICENSE-2.0
+
+   Unless required by applicable law or agreed to in writing, software
+   distributed under the License is distributed on an "AS IS" BASIS,
+   WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
+   See the License for the specific language governing permissions and
+   limitations under the License.
+*/
+
+namespace RDFSharp.Model
+{
+    /// <summary>
+    /// RDFVocabulary is an helper for handy usage of supported RDF vocabularies.
+    /// </summary>
+    public static partial class RDFVocabulary
+    {
+        #region SWRL
+        /// <summary>
+        /// SWRL represents the W3C Semantic Web Rule Language vocabulary.
+        /// </summary>
+        public static class SWRL
+        {
+
+            #region Properties
+            /// <summary>
+            /// swrl
+            /// </summary>
+            public static readonly string PREFIX = "swrl";
+
+            /// <summary>
+            /// https://www.w3.org/2003/11/swrl
+            /// </summary>
+            public static readonly string BASE_URI = "https://www.w3.org/2003/11/swrl";
+
+            /// <summary>
+            /// https://www.w3.org/2003/11/swrl
+            /// </summary>
+            public static readonly string DEREFERENCE_URI = "https://www.w3.org/2003/11/swrl";
+            #endregion
+
+            #region Extended Properties
+            /// <summary>
+            /// SWRLB represents the W3C Semantic Web Rule Language - BuiltIns vocabulary.
+            /// </summary>
+            public static class SWRLB
+            {
+
+                #region Properties
+                /// <summary>
+                /// swrl
+                /// </summary>
+                public static readonly string PREFIX = "swrlb";
+
+                /// <summary>
+                /// https://www.w3.org/2003/11/swrlb
+                /// </summary>
+                public static readonly string BASE_URI = "https://www.w3.org/2003/11/swrlb";
+
+                /// <summary>
+                /// https://www.w3.org/2003/11/swrlb
+                /// </summary>
+                public static readonly string DEREFERENCE_URI = "https://www.w3.org/2003/11/swrlb";
+                #endregion
+
+            }
+            #endregion
+
+        }
+        #endregion
+    }
+}
\ No newline at end of file