Sadaharu Oh, 1st baseman for the Yomiuri Giants in the Japanese major leagues from 1959-1980, is the all time home run leader with 868.
Barry Bonds *
With the use of steroids
Barry Bonds holds the records for most home runs in a season (73) and for a career (762).
Barry Bonds has the most homeruns in a single season. His record is 73.
Barry Bonds holds the record for career home runs with 762 and the mark for most homers in a season with 73.
Giancarlo Stanton holds the record for the most home runs in a Home Run Derby, hitting 61 home runs in the 2016 competition.
Jason Bay has the record with 61
The record for most home runs hit during a World Series is 5, held by Reggie Jackson and Chase Utley.
Frank Robinson
Slugger Barry Bonds holds the record for the most home runs in a career. In the course of his career, he blasted 762 out of the park.
Barry Bonds holds the record for career home runs with 762 and the mark for most homers in a season with 73.
He holds the major league records for most home runs in a career (762) and most home runs in a season (73).
Rid
Mickey Mantle holds the record for most World Series home runs with 18.
Ted Williams holds the record for most career home runs by a Boston Red Sox player with 521.
Barry Bonds
Manny Ramirez
16
Dave Klingman holds the record for most home runs hit during a retirement season. He hit 35 home runs in his 1987 final season.
Barry Bonds of the San Francisco Giants hit a record 73 home runs during the 2001 season. He also holds the record for career home runs with 762.
He holds the world record for the most home runs in a single season.