List of highways numbered 999

The following highways or routes are numbered 999.

Canada

 * Saskatchewan Highway 999

Israel

 * ISR-HW-999.svg Route 999 (Israel)

Netherlands

 * NLD-N999.svg N999 (Netherlands)

United States

 * (former)
 * Puerto Rico Highway 999 (former)
 * Puerto Rico Highway 999 (former)
 * Puerto Rico Highway 999 (former)