Kimberly Po (born October 20, 1971) is a former professional tennis player from the United States.

Kimberly Po

Full name	Kimberly Po-Messerli
Country (sports)	United States
Residence	Rolling Hills, California, U.S.
Born	(1971-10-20) October 20, 1971 (age 52) Los Angeles, California, U.S.
Height	5 ft 2 in (1.57 m)
Turned pro	1991
Retired	2002
Plays	Right (two-handed backhand)
Prize money	$1,926,618
Singles
Career record	200–180
Career titles	3 ITF
Highest ranking	No. 14 (June 9, 1997)
Grand Slam singles results
Australian Open	QF (1997)
French Open	3R (1993, 1997)
Wimbledon	2R (1992, 1994, 1996, 1998)
US Open	4R (1998)
Doubles
Career record	250–216
Career titles	5 WTA, 1 ITF
Highest ranking	No. 6 (September 10, 2001)
Grand Slam doubles results
Australian Open	3R (2001)
French Open	QF (2001)
Wimbledon	SF (2001)
US Open	F (2001)
Mixed doubles
Career titles	1
Grand Slam mixed doubles results
Australian Open	QF (1999)
French Open	QF (2000)
Wimbledon	W (2000)
US Open	F (1999)

In her career, she won the mixed doubles title at Wimbledon in 2000, partnering Donald Johnson. She also was a runner-up at the US Open in women's doubles in 2001, partnering Nathalie Tauziat, as well as at the 1999 US Open in mixed doubles, with Johnson.

Po won six top-level doubles titles. Her career-high world rankings were world No. 6 in doubles (in 2001) and No. 14 in singles (in 1997). Her best singles performance at a Grand Slam event came at the 1997 Australian Open when she reached the quarterfinals before being knocked out by Amanda Coetzer.

Po married Oliver Messerli in 2001, and was known thereafter as Kimberly Po-Messerli.