| Full name | Kimberly Po-Messerli | 
|---|---|
| Country (sports) |  United States | 
| Residence | Rolling Hills, California, U.S. | 
| Born | October 20, 1971  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) | 
Kimberly Po (born October 20, 1971) is a former professional tennis player from the United States.
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. She has also been elected for the UCLA hall of fame in 2025
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.
| Result | Year | Championship | Surface | Partner | Opponents | Score | 
|---|---|---|---|---|---|---|
| Loss | 2001 | US Open | Hard |  Nathalie Tauziat |  Lisa Raymond  Rennae Stubbs | 6–2, 5–7, 7–5 | 
| Result | Year | Championship | Surface | Partner | Opponents | Score | 
|---|---|---|---|---|---|---|
| Loss | 1999 | US Open | Hard |  Donald Johnson |  Ai Sugiyama  Mahesh Bhupathi | 6–4, 6–4 | 
| Win | 2000 | Wimbledon | Grass |  Donald Johnson |  Kim Clijsters  Lleyton Hewitt | 6–4, 7–6(7–3) | 
| Legend | 
|---|
| Grand Slam tournaments (0/1) | 
| Tier I (1/1) | 
| Tier II (1/6) | 
| Tier III (3/6) | 
| Tier IV & V (0/0) | 
| Virginia Slims (0/0) |