The 1988 Transamerica Open, also known as the Pacific Coast Championships, was a men's tennis tournament played on indoor carpet courts at the Cow Palace in San Francisco, California in the United States.

The event was part of the Super Series of the 1988 Nabisco Grand Prix circuit.

Unseeded Michael Chang won the singles title and earned $59,500 first-prize money.

At age 16 he became the youngest winner of a Grand Prix Super Series event.

[3] Michael Chang defeated Johan Kriek 6–2, 6–3 John McEnroe / Mark Woodforde defeated Scott Davis / Tim Wilkison 6–4, 7–6