diff --git a/types/joi-password-complexity/index.d.ts b/types/joi-password-complexity/index.d.ts
new file mode 100644
index 0000000000..7fe034b954
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+++ b/types/joi-password-complexity/index.d.ts
@@ -0,0 +1,24 @@
+// Type definitions for joi-password-complexity 3.1
+// Project: https://github.com/kamronbatman/joi-password-complexity
+// Definitions by: Nico Flaig <https://github.com/nflaig>
+// Definitions: https://github.com/DefinitelyTyped/DefinitelyTyped
+// TypeScript Version: 3.5
+
+// tslint:disable-next-line:no-unnecessary-class
+declare class PasswordComplexity {
+    constructor(options?: PasswordComplexity.ComplexityOptions);
+}
+
+declare namespace PasswordComplexity {
+    interface ComplexityOptions {
+        min: number;
+        max: number;
+        lowerCase: number;
+        upperCase: number;
+        numeric: number;
+        symbol: number;
+        requirementCount: number;
+    }
+}
+
+export = PasswordComplexity;
diff --git a/types/joi-password-complexity/joi-password-complexity-tests.ts b/types/joi-password-complexity/joi-password-complexity-tests.ts
new file mode 100644
index 0000000000..fd5633bddf
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+++ b/types/joi-password-complexity/joi-password-complexity-tests.ts
@@ -0,0 +1,13 @@
+import PasswordComplexity = require("joi-password-complexity");
+
+const complexityOptions: PasswordComplexity.ComplexityOptions = {
+    min: 8,
+    max: 30,
+    lowerCase: 1,
+    upperCase: 1,
+    numeric: 1,
+    symbol: 1,
+    requirementCount: 3
+};
+
+const passwordComplexity = new PasswordComplexity(complexityOptions);
diff --git a/types/joi-password-complexity/tsconfig.json b/types/joi-password-complexity/tsconfig.json
new file mode 100644
index 0000000000..860f6e995c
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+++ b/types/joi-password-complexity/tsconfig.json
@@ -0,0 +1,23 @@
+{
+    "compilerOptions": {
+        "module": "commonjs",
+        "lib": [
+            "es6"
+        ],
+        "noImplicitAny": true,
+        "noImplicitThis": true,
+        "strictFunctionTypes": true,
+        "strictNullChecks": true,
+        "baseUrl": "../",
+        "typeRoots": [
+            "../"
+        ],
+        "types": [],
+        "noEmit": true,
+        "forceConsistentCasingInFileNames": true
+    },
+    "files": [
+        "index.d.ts",
+        "joi-password-complexity-tests.ts"
+    ]
+}
diff --git a/types/joi-password-complexity/tslint.json b/types/joi-password-complexity/tslint.json
new file mode 100644
index 0000000000..6746359dda
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+++ b/types/joi-password-complexity/tslint.json
@@ -0,0 +1,3 @@
+{ 
+    "extends": "dtslint/dt.json"
+}