Pinnacle Marina Tower, Residential skyscraper in Marina District, San Diego, United States

Pinnacle Marina Tower is a 449-foot (137 m) residential high-rise completed in 2005 at 550 Front Street in the Marina district of downtown San Diego. It has 36 floors, a three-level parking garage, 182 residential units and nine commercial units, and was built from 2003 to 2005 as the Pinnacle Museum Tower.

Construction ran from 2003 to 2005, when the tower opened as the Pinnacle Museum Tower; it was later renamed Pinnacle Marina Tower. The design came from the firms Austin Veum Robbins Parshalle and Hancock Brückner Eng + Wright. By 2024 it stood as the seventh-tallest skyscraper in San Diego.

The tower's name recalls its original identity as the Pinnacle Museum Tower, a link to the Museum of Contemporary Art San Diego nearby in the Marina district. Its nine commercial units occupy the lower levels, while the 182 residences above are private condominiums. The building was designed by Austin Veum Robbins Parshalle with Hancock Brückner Eng + Wright.

The tower stands at 550 Front Street in the Marina district of downtown San Diego, a short walk from the Santa Fe Depot transit stop. Its three-level garage serves residents and the nine commercial units rather than the general public, and the residential floors above are private.

The building opened in 2005 as the Pinnacle Museum Tower and was later renamed Pinnacle Marina Tower. Its design came from two firms, Austin Veum Robbins Parshalle and Hancock Brückner Eng + Wright. By 2024 it ranked as San Diego's seventh-tallest skyscraper, behind the city's larger downtown towers.