Ian Happ attended Mt. Lebanon High School in Pittsburgh, Pennsylvania. In four seasons, he hit .449 with 12 home runs and 65 runs batted in (RBI).
He committed to the University of Cincinnati to play college baseball for the Bearcats. As a freshman, Happ started in all 56 games and had a team-high .322 batting average, .483 slugging percentage, .451 on-base percentage, six home runs, 41 runs scored 13 doubles, and 47 walks.
After the 2013 season, he played collegiate summer baseball for the Harwich Mariners of the Cape Cod Baseball League, and was named a league all-star. As a sophomore in 2014, he started 50 of 51 games. He hit .322/.443/.497 with five home runs and 19 stolen bases.
After the season, he returned to play summer ball for Harwich, where he received all-star honors for a second consecutive year. As a junior, he played in 56 games, hitting .369/.492/.672 with 14 home runs and 44 RBIs.
Happ was optioned to the Iowa Cubs to begin the 2019 Season, after slashing .135/.196/.192 during 17 spring training games, to work on cutting down his strikeout rate.
Happ was recalled to the majors on July 25, 2019. Happ finished the season with 11 home runs and 30 RBIs. He slashed .297/.409/.622 in 58 games, striking out 39 times. He was named National League Player of the Week on September 30, 2019.
Happ started the COVID-19-shortened 2020 season in center field for the Cubs. He hit .258/.361/.505 with 12 home runs and 28 RBIs in 57 games.
In 2021, Happ hit .226/.323/.434 in 148 games for the Cubs. He led the team with 66 RBIs and set career highs with 105 hits, 25 home runs, 63 runs scored, and 9 stolen bases.
There are no details about whether he has children or not. He may be may or may not have children. There are also no rumors about his children.