Robert Arthur Seguso (born May 1, 1963) is a former professional tennis player from the United States.

He also won the men's doubles gold medal at the 1988 Olympic Games in Seoul, partnering Ken Flach.

Seguso played doubles with Flach on the U.S. Davis Cup team from 1985 to 1991, compiling a 10–2 record.

Seguso married the Canadian tennis player Carling Bassett in 1987.

The couple have five children – sons Holden John (born in 1988) and Ridley Jack (1991), and daughters Carling Junior (1992), Lennon Shy and Theodora.