Alexander Guerrero Perez (born November 20, 1986) is a Cuban professional baseball left fielder and third baseman for the Chunichi Dragons of Nippon Professional Baseball (NPB). He defected from Cuba in 2013 to pursue a contract in Major League Baseball (MLB). He signed with the Los Angeles Dodgers and made his MLB debut in 2014. He played primarily shortstop in Cuba, but has played third base and left field for the Dodgers, who released him in 2016.

As a member of Cuba's Las Tunas team in the Cuban National Series, Guerrero was named to the 2010-2011 All-Star team as well as playing for the Cuba national baseball team at the 2012 Haarlem Baseball Week and the 2011 World Port Tournament. He was part of the initial roster for the 2013 World Baseball Classic but did not make the final roster and reportedly sat out the regular season because he was upset at his snub.

He defected from Cuba in 2013 and obtained residency in Haiti. He began training in the Dominican Republic and on September 9, 2013, it was reported that he had been cleared by the U.S. Office of Foreign Assets Control to sign with U.S. teams.

Guerrero was rumored to be signing with the Los Angeles Dodgers, with early reports putting his deal in the seven-year, $32 million area. However, his initial agents turned out to not be licensed and he switched to Scott Boras, who said the bidding was now wide open. On October 21, 2013, it was reported that Guerrero had reached a new agreement with the Dodgers, that would be worth $28 million over 4 years. The deal included a $10 million signing bonus and allows him to become a free agent after his age 30 season. The Dodgers officially announced his signing on October 22.

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