This is a list of some of the records relating to home runs hit in baseball games played in the Major Leagues. Some Major League records are sufficiently notable to have their own page, for example the single-season home run record, the progression of the lifetime home run record, and the members of the 500 home run club. A few other records are kept on separate pages, they are listed below. In the tables below, players and teams denoted in boldface are still actively contributing to the record noted, while (r) denotes a player's rookie season.

Key

Players and the columns that correspond are denoted in boldface if they are still actively contributing to the record noted.

Career records

Most seasons with 40 home runs

Most consecutive seasons with 40 home runs

Most seasons with 30 home runs

Most consecutive seasons with 30 home runs

Most seasons with 20 home runs

Most consecutive seasons with 20 home runs

Most seasons as league leader in home runs

see note1

Most consecutive seasons as league leader in home runs

see note1

League leader in home runs, both leagues

League leader in home runs, three different teams

Players who have hit at least one home run in 40 stadiums

Most career grand slams

Most career walk-off home runs

Season records

Most home runs by a team in one season

Most grand slams by a player in one season

Most home runs by a rookie player

Game records

Four home runs by an individual in one game

Four consecutive home runs by a team in one game

Home runs on three or more consecutive pitches

Two grand slams by one hitter in one game

Three grand slams by a team in one game

Other

Most home runs on a single day (all teams combined)

Most walkoff home runs in a season (all teams combined)