Karlo Igor Majić (born 3 March 1998) is a Croatian footballer who plays as a centre-forward for NK Kustošija.^[2]

Majić started practicing football at the age of 7 at the now-defunct Radnik in his hometown of Velika Gorica,^[3] where he played, apart from a short stint in 2008 at NK Zagreb, until the club was disbanded and merged with HNK Gorica, which he joined in 2009. At the age of 14, he was scouted by GNK Dinamo Zagreb and joined their academy.^[3] In 2016, he joined the U-19 team of Fortuna Düsseldorf, earning a three-year professional contract with the club in July 2017, having scored 16 goals in 25 games.^[4]

After a year and a half playing for Fortuna's reserve team, Majić was loaned out to Krško in the Slovenian PrvaLiga.^[5] He made his professional debut for the club on 24 February 2019, coming on as a substitute in the 73rd minute for Sandi Ogrinec in the home match against Olimpija Ljubljana, which finished as a 1–4 loss.^[6]