The San Diego Convention Center is the primary convention center in San Diego, California, United States. It is located in the Marina district of downtown San Diego near the Gaslamp Quarter, at 111 West Harbor Drive. The center is managed by the San Diego Convention Center Corporation, a non-profit public benefit corporation created by the City of San Diego.

A convention center is a large building that is designed to hold a convention, where individuals and groups gather to promote and share common interests. Convention centers typically offer sufficient floor area to accommodate several thousand attendees. Very large venues, suitable for major trade shows, are sometimes known as exhibition halls. Convention centers typically have at least one auditorium and may also contain concert halls, lecture halls, meeting rooms, and conference rooms. Some large resort area hotels include a convention center.