- Jackson Chourio was the youngest player during the 2024 season.
- Chourio is 21 years old in his second MLB campaign.
MLB teams continue to call up their prospects much earlier, so it’s important to keep track of the sport’s promising young players.
The youngest player in MLB history was Joe Nuxhall, who debuted in the MLB for the Cincinnati Reds on June 10, 1944, at 15 years of age. Nuxhall’s extremely early major league selection was the exception rather than the rule, but there are still plenty of players proving that sometimes career success comes sooner rather than later.
*Note: all ages are as of May 29.
Ranking Youngest MLB Players in 2025
| PLAYER | TEAM | AGE |
|---|---|---|
| Jackson Chourio | Milwaukee Brewers | 21 years, 79 days |
| Caden Dana | Los Angeles Angels | 21 years, 163 days |
| Jackson Holliday | Baltimore Orioles | 21 years, 176 days |
| Junior Caminero | Tampa Bay Rays | 21 years, 328 days |
| Jackson Merrill | San Diego Padres | 22 years, 40 days |
| Cam Smith | Houston Astros | 22 years, 96 days |
| Jasson Dominguez | New York Yankees | 22 years, 111 days |
| AJ Smith-Shawver | Atlanta Braves | 22 years, 190 days |
| James Wood | Washington Nationals | 22 years, 254 days |
| Javier Sanoja | Miami Marlins | 22 years, 268 days |
| Max Muncy | Athletics | 22 years, 277 days |
| Ryan Johnson | Los Angeles Angels | 22 years, 297 days |
| Jackson Jobe | Detroit Tigers | 22 years, 303 days |
| Angel Chivilli | Colorado Rockies | 22 years, 305 days |
| Kristian Campbell | Boston Red Sox | 22 years, 335 days |
Who is the Youngest Player in MLB?
Milwaukee Brewers outfielder Jackson Chourio is the youngest player in MLB, completing an impressive rookie campaign in the majors before being old enough to buy an adult beverage.
Chourio, who turned 21 on March 11, finished third in NL Rookie of the Year voting last year. He hit .275 with 21 home runs, 79 RBIs, and 22 stolen bases during his debut campaign.
Chourio will continue to be one of the youngest players in the majors during the 2025 season.
Yearly Records for Youngest MLB Players
| Year | Player | Team | Age |
|---|---|---|---|
| 2024 | Jackson Chourio | MIL | 20 |
| 2023 | Junior Caminero | TBR | 19 |
| 2022 | Francisco Alvarez | NYM | 20 |
| 2021 | Wander Franco | TBR | 20 |
| 2020 | Luis Garcia Jr. | WSN | 20 |
| 2019 | Elvis Luciano | TOR | 19 |
| 2018 | Juan Soto | WSN | 19 |
| 2017 | Rafael Devers | BOS | 20 |
| 2016 | Julio Urias | LAD | 19 |
| 2015 | Adalberto Mondesi | KCR | 19 |
| 2014 | Dilson Herrera | NYM | 20 |
| 2013 | Jurickson Profar | TEX | 20 |
| 2012 | Jurickson Profar | TEX | 19 |
| 2011 | Mike Trout | LAA | 19 |
| 2010 | Starlin Castro | CHC | 20 |
| 2009 | Madison Bumgarner | SFG | 19 |
| 2008 | Clayton Kershaw | LAD | 20 |
| 2007 | Justin Upton | ARI | 19 |
| 2006 | Felix Hernandez | SEA | 20 |
| 2005 | Felix Hernandez | SEA | 19 |
| 2004 | B.J. Upton | TBR | 19 |
| 2003 | Edwin Jackson | LAD | 19 |
| 2002 | Wily Mo Pena | CIN | 20 |
| 2001 | Wilson Betemit | ATL | 19 |
| 2000 | Jon Garland | CHW | 20 |
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