diff --git a/docs/models-definition.md b/docs/models-definition.md
index 4883fcb866ad..bb2679749300 100644
--- a/docs/models-definition.md
+++ b/docs/models-definition.md
@@ -150,6 +150,10 @@ Sequelize.BLOB('tiny')                // TINYBLOB (bytea for PostgreSQL. Other o
 
 Sequelize.UUID                        // UUID datatype for PostgreSQL and SQLite, CHAR(36) BINARY for MySQL (use defaultValue: Sequelize.UUIDV1 or Sequelize.UUIDV4 to make sequelize generate the ids automatically)
 
+Sequelize.CIDR                        // CIDR datatype for PostgreSQL
+Sequelize.INET                        // INET datatype for PostgreSQL
+Sequelize.MACADDR                     // MACADDR datatype for PostgreSQL
+
 Sequelize.RANGE(Sequelize.INTEGER)    // Defines int4range range. PostgreSQL only.
 Sequelize.RANGE(Sequelize.BIGINT)     // Defined int8range range. PostgreSQL only.
 Sequelize.RANGE(Sequelize.DATE)       // Defines tstzrange range. PostgreSQL only.
diff --git a/lib/data-types.js b/lib/data-types.js
index 96d0351b4af2..2af7e1ee1425 100644
--- a/lib/data-types.js
+++ b/lib/data-types.js
@@ -751,6 +751,51 @@ GEOGRAPHY.prototype._bindParam = function _bindParam(value, options) {
   return 'GeomFromText(' + options.bindParam(wkx.Geometry.parseGeoJSON(value).toWkt()) + ')';
 };
 
+function CIDR() {
+  if (!(this instanceof CIDR)) return new CIDR();
+}
+inherits(CIDR, ABSTRACT);
+
+CIDR.prototype.key = CIDR.key = 'CIDR';
+
+CIDR.prototype.validate = function validate(value) {
+  if (!_.isString(value) || !Validator.isIPRange(value)) {
+    throw new sequelizeErrors.ValidationError(util.format('%j is not a valid CIDR', value));
+  }
+
+  return true;
+};
+
+function INET() {
+  if (!(this instanceof INET)) return new INET();
+}
+inherits(INET, ABSTRACT);
+
+INET.prototype.key = INET.key = 'INET';
+
+INET.prototype.validate = function validate(value) {
+  if (!_.isString(value) || !Validator.isIP(value)) {
+    throw new sequelizeErrors.ValidationError(util.format('%j is not a valid INET', value));
+  }
+
+  return true;
+};
+
+function MACADDR() {
+  if (!(this instanceof MACADDR)) return new MACADDR();
+}
+inherits(MACADDR, ABSTRACT);
+
+MACADDR.prototype.key = MACADDR.key = 'MACADDR';
+
+MACADDR.prototype.validate = function validate(value) {
+  if (!_.isString(value) || !Validator.isMACAddress(value)) {
+    throw new sequelizeErrors.ValidationError(util.format('%j is not a valid MACADDR', value));
+  }
+
+  return true;
+};
+
 for (const helper of Object.keys(helpers)) {
   for (const DataType of helpers[helper]) {
     if (!DataType[helper]) {
@@ -952,7 +997,10 @@ const DataTypes = module.exports = {
   DOUBLE,
   'DOUBLE PRECISION': DOUBLE,
   GEOMETRY,
-  GEOGRAPHY
+  GEOGRAPHY,
+  CIDR,
+  INET,
+  MACADDR
 };
 
 _.each(DataTypes, dataType => {
diff --git a/lib/dialects/postgres/data-types.js b/lib/dialects/postgres/data-types.js
index 820452d7cbed..d985aed3980a 100644
--- a/lib/dialects/postgres/data-types.js
+++ b/lib/dialects/postgres/data-types.js
@@ -21,6 +21,21 @@ module.exports = BaseTypes => {
     array_oids: [2951]
   };
 
+  BaseTypes.CIDR.types.postgres = {
+    oids: [650],
+    array_oids: [651]
+  };
+
+  BaseTypes.INET.types.postgres = {
+    oids: [869],
+    array_oids: [1041]
+  };
+
+  BaseTypes.MACADDR.types.postgres = {
+    oids: [829],
+    array_oids: [1040]
+  };
+
   BaseTypes.JSON.types.postgres = {
     oids: [114],
     array_oids: [199]
diff --git a/package.json b/package.json
index 1588bf6e9640..4691d3858588 100644
--- a/package.json
+++ b/package.json
@@ -32,7 +32,7 @@
     "semver": "^5.5.0",
     "toposort-class": "^1.0.1",
     "uuid": "^3.2.1",
-    "validator": "^10.0.0",
+    "validator": "^10.4.0",
     "wkx": "^0.4.5"
   },
   "devDependencies": {
diff --git a/test/integration/data-types.test.js b/test/integration/data-types.test.js
index 516a3aafaa57..8b007cd89baa 100644
--- a/test/integration/data-types.test.js
+++ b/test/integration/data-types.test.js
@@ -262,6 +262,36 @@ describe(Support.getTestDialectTeaser('DataTypes'), () => {
     }
   });
 
+  it('calls parse and stringify for CIDR', () => {
+    const Type = new Sequelize.CIDR();
+
+    if (['postgres'].indexOf(dialect) !== -1) {
+      return testSuccess(Type, '10.1.2.3/32');
+    } else {
+      testFailure(Type);
+    }
+  });
+
+  it('calls parse and stringify for INET', () => {
+    const Type = new Sequelize.INET();
+
+    if (['postgres'].indexOf(dialect) !== -1) {
+      return testSuccess(Type, '127.0.0.1');
+    } else {
+      testFailure(Type);
+    }
+  });
+
+  it('calls parse and stringify for MACADDR', () => {
+    const Type = new Sequelize.MACADDR();
+
+    if (['postgres'].indexOf(dialect) !== -1) {
+      return testSuccess(Type, '01:23:45:67:89:ab');
+    } else {
+      testFailure(Type);
+    }
+  });
+
   it('calls parse and stringify for ENUM', () => {
     const Type = new Sequelize.ENUM('hat', 'cat');