Alex Liddi (born August 14, 1988) is an Italian professional baseball third and first baseman who is a free agent.

[1] Liddi was signed as an undrafted free agent from Italy on September 9, 2005, by Seattle Mariners scouts Wayne Norton and Mauro Mazzotti.

He led the Timber Rattlers in doubles with 28, RBI with 52, at-bats with 400, games played with 113 and total bases.

He recorded a career-high five hits, going 5-for-5 with three runs scored and two doubles on June 14 against the Clinton LumberKings.

Liddi had a break-out season in 2009, batting a league-leading .345 with 23 home runs and 104 RBI in 129 games with the Single–A High Desert Mavericks.

His batting average led all Mariners minor leaguers, while his 104 RBI tied with teammate Joe Dunigan for the organizational lead.

He hit grand slams in back-to-back games before being demoted to the Mariners' Triple-A affiliate, the Tacoma Rainiers, on March 12, 2011.

In 8 Spring training games, Liddi hit for a .385 batting average and a .429 on-base percentage, with an OPS of .846.

[15] He was optioned to the Triple-A Norfolk Tides, where in 49 games at first and third base, he hit .222 with 4 HR and 22 RBI.

On September 6, after not earning a call-up when the rosters expanded, he was designated for assignment to make room for Chris Dickerson,[16] and was sent outright to Triple–A Tides two days later.

On November 14, 2013, Liddi signed a minor league deal with the Chicago White Sox.

On May 16, 2014, Liddi signed a minor league contract with the Los Angeles Dodgers organization and was assigned to the Triple–A Albuquerque Isotopes.

On January 10, 2015, Liddi signed a minor league deal with the Kansas City Royals.

[18] He spent the season with the Double-A Northwest Arkansas Naturals, batting .287/.324/.474 in 128 games before electing free agency on November 6, 2015.

On April 1, 2016, Liddi signed with the Tigres de Quintana Roo of the Mexican Baseball League.

On February 19, 2018, Liddi signed a minor league contract with the Kansas City Royals.

[22] On April 2, 2019, Liddi signed with the Chinatrust Brothers of the Chinese Professional Baseball League.