Larry Louis Poncino (born February 3, 1957 in Los Angeles, CA) is a former umpire in Major League Baseball. His Major League umpiring debut came on July 11, 1985, and his last game was on September 30, 2007. He umpired in the 2006 American League Division Series; the National League Championship Series in 1998, 2003, and 2005, and the 1996 MLB All-Star Game. Larry wore uniform number 13 during his National League stint, then changed to 39 when the NL and AL umpiring staffs merged in 2000.

He resigned in 1999 as part of the mass resignation arranged by Richie Phillips but was rehired by Major League Baseball in 2002 and received back-pay for the time missed.

Poncino was the plate umpire for Dennis Martínez's perfect game on July 28, 1991. On June 28, 2007, he was the home plate umpire when Craig Biggio got his 3,000th hit against the Colorado Rockies. Larry served in the National League from 1985 to 1988 and from 1991 to 1999. He worked in both leagues from 2002 to 2007.

Larry was also part of a 8/10/1995 Cardinals-Dodgers game that was forfeited as Tommy Lasorda was ejected from the game, and Dodger fans threw thousand of giveaway baseballs onto the field. After the field was cleared, in the bottom of the ninth, hundreds of baseballs were thrown onto the field - causing crew chief umpire quick, ump Bob Davidson and Larry to declare the game a forfeit by the Dodgers.

On August 13th 2002 at Arlington, Texas in a game between the Texas Rangers & the Chicago White Sox, the umpiring crew was made up of the same ethnic background, all Italian / Americans. Dan Iassogna was on the line at third base, Tony Randazzo at second base, Larry Poncino on the line at first base & Ed Rapuano was behind the plate.

Poncino retired due to a neck injury.

(excerpted from Centerfield Maz, Baseball Almanac, BR Bullpen & Wikipedia)