Jeffrey Howard Cirillo (born September 23, 1969) is an American former third baseman in Major League Baseball.

He shares the major league record of playing 99 consecutive errorless games at third base with John Wehner.

His most productive season came in 2000 with the Colorado Rockies, when he posted career-highs in RBI (115), runs (111), and doubles (53); finished with 195 hits; and matched his personal-best .326 average.

On December 16, 2001, the Rockies traded Cirillo to the Seattle Mariners for Denny Stark, Brian Fuentes, and José Paniagua.

[2] Posting the lowest BABIP since his rookie season, he was ineffective with the bat but provided strong defensive contributions while in Seattle, ranked by UZR as the second best third baseman in the American League in 2002.

Rejoining the Milwaukee Brewers in 2005, Cirillo saw a resurgence in his stroke while continuing his solid defense posting wOBA's of .355 in 2005 and .344 in 2006.

His son, Cole, played football and basketball, as well as participating in track and field events, at Bellevue High School before graduating in 2016.

[7][8] He graduated Magna Cum Laude from the University of Southern California in 2020 and is currently a Management Consulting Associate at KPMG.

[9] Carson, a 2018 graduate, played varsity baseball and golf at Bellevue High School, now attending the University of Puget Sound, and Connor, who played basketball and baseball, graduated in 2019 with the intention of attending the University of Southern California as well.