Votto was born to Wendy (née Howell) and Joseph Votto in Toronto, Ontario, and grew up in the district of Etobicoke. His mother is a sommelier and restaurant manager. His father was a chef and a baseball fan who died at age 52 in 2008. He is of Italian and English descent. As a child, he adorned his wall with a Ted Williams poster.
Votto opened May with a five-game hitting streak. In a May matchup against the St. Louis Cardinals, he had two homers and four RBI. He finished the month with five home runs and a .378 batting average. However, he was placed on the DL to open June after missing time in May due to personal issues. Prior to his return game during the 2009 season, he indicated he had been suffering from depression and anxiety issues as a result of the sudden death of his father in August 2008 and had sought treatment. He had previously missed time because of dizziness related to an inner ear infection.
Votto finished the season having played in 111 games—the fewest he had played in a season since becoming the Reds' starting first basemen in 2008. He had a .337 batting average, .474 on-base percentage, and a .567 slugging percentage to go along with 14 home runs, 56 RBI, and 44 doubles. His 94 walks led the NL. (Eighteen of his walks were intentional, which led the majors.)
Votto has been recognized for his defensive play as a first baseman. He led the league in assists (with 136) for first basemen in 2008, a feat he repeated in consecutive seasons in 2011 and 2012. He finished fifth in 2009 with 101 assists and second in 2010 with 128 assists. In 2011, he also led all NL first basemen in putouts (1,341), and he was third in fielding percentage (.996). That year, he won his first Gold Glove Award.