18th Street may refer to the following locations in the United States:

• 18th Street gang, a Los Angeles-based Hispanic street gang
• 18th Street (IRT Broadway–Seventh Avenue Line), a New York City subway station on the IRT Broadway-Seventh Avenue Line
• 18th Street (IRT Lexington Avenue Line), an abandoned New York City subway station on the IRT Lexington Avenue Line
• 18th Street NW (Washington, D.C.)

This disambiguation page lists articles about distinct geographical locations with the same name. If an internal link led you here, you may wish to change the link to point directly to the intended article.