In general news and sports coverage, the full city and team name should be used on first reference in copy.
However, in all headlines and on first reference in copy where the MLB context is obvious, only the full team name needs to be used: Tigers drop heartbreaker to Twins, 5-4; The Astros are expected to be active at the trade deadline.
Below are common nicknames for each team, all of which are acceptable on subsequent reference in copy. Nicknames with a caret (^) are the preferred name, whereas nicknames with an asterisk (*) should be used sparingly, if at all.
| Arizona Diamondbacks | D-backs |
| Athletics | A’s^ |
| Atlanta Braves | |
| Baltimore Orioles | O’s |
| Boston Red Sox | Sox |
| Chicago Cubs | Cubbies, North Siders |
| Chicago White Sox | Sox, South Siders |
| Cincinnati Reds | Redlegs |
| Cleveland Guardians | Guards* |
| Colorado Rockies | Rox |
| Detroit Tigers | Bengals*, Motor City Kitties* |
| Houston Astros | ‘Stros* |
| Kansas City Royals | |
| Los Angeles Angels | Halos |
| Los Angeles Dodgers | |
| Miami Marlins | |
| Milwaukee Brewers | Brew Crew |
| Minnesota Twins | Twinkies* |
| New York Mets | Amazin’s* |
| New York Yankees | Bronx Bombers, Bombers |
| Philadelphia Phillies | Phils |
| Pittsburgh Pirates | Bucs, Buccos |
| San Diego Padres | |
| San Francisco Giants | |
| Seattle Mariners | M’s |
| St. Louis Cardinals | Redbirds |
| Tampa Bay Rays | |
| Texas Rangers | |
| Toronto Blue Jays | Jays |
| Washington Nationals | Nats |
