Most home runs in a season
Barry Bonds, 73 in 2001.
Barry Bonds hit 73 for the San Francisco Giants in 2001, the MLB record for home runs in a season. Next: Mark McGwire (70, 1998) and Sammy Sosa (66, 1998).
In 2026: Pete Crow-Armstrong (Chicago Cubs) and Kyle Schwarber (Philadelphia Phillies) led MLB with 45, 28 short of the record.
Most home runs in a season: the top 25
More than once in the top 25: Babe Ruth 4 times, Mark McGwire 3 times, Sammy Sosa 3 times, Ken Griffey Jr. 2 times, Alex Rodriguez 2 times and Aaron Judge 2 times.
Every team's record
Each franchise's best season, including the years it played under another name or in another city.
Questions
What is the MLB record for home runs in a season?
73, by Barry Bonds of the San Francisco Giants in 2001.
Who led MLB in home runs in 2026?
Pete Crow-Armstrong of the Chicago Cubs and Kyle Schwarber of the Philadelphia Phillies, with 45. That is 28 short of the record.
Who has the most seasons among the top 25 for home runs?
Babe Ruth, 4 times (1920, 1921, 1927 and 1928).
Which team's own home runs record is the highest?
San Francisco Giants: Barry Bonds, 73 in 2001. The lowest club record belongs to the Washington Nationals, 46 by Alfonso Soriano (2006).
Which numbers count?
MLB's official records, which since 2024 include the Negro Leagues from 1920 to 1948.