Isac Lidberg

Hammarby IF

Lidberg started out his football career with local side Hägerstens SK, but moved to Hammarby Sjöstad and began to play for Hammarby IF as an eleven-year-old. Advancing through the youth teams, Lidberg played his first game for Hammarby's under 21-team against GIF Sundsvall 2014 as a substitute, and scored a 2–1 goal within a minute. In March 2015, Hammarby offered him a 3-year senior contract, which he signed. The senior debut came the same year in Allsvenskan, when Lidberg got substituted with Linus Hallenius in a game against Falkenbergs FF on 13 July. The 16-year-old Lidberg became the youngest player ever to represent Hammarby in Allsvenskan. He played his second game in Allsvenskan on the last game day of the 2015 season in Hammarby's 2–1 loss away against Halmstads BK. Lidberg made another five appearances in Allsvenskan for the club during the 2016 season.

Loan to Enskede IK

On 8 April 2016 it was announced that Lidberg was going to be on loan to newly promoted Division 1 club Enskede IK for the whole season. With Enskede being Hammarby's partner club, an agreement was made that the player was allowed to represent both clubs during the loan period. In his first start for the club, he scored two goals in Enskede's 3–1 win against Piteå IF on 1 May. Lidberg would later move on to make another 14 appearances for the side during the season, scoring 6 goals in the league play.

Åtvidabergs FF

On 30 March 2017, he signed a permanent…

Isac Lidberg played 14 games for Sweden U17, in which he scored nine goals, between 2014 and 2015. As of the end of 2016, he has won 11 caps for Sweden U19 and scored 10 goals in total. Lidberg made his debut for Sweden national team on 19 November 2024 in a Nations League game against Azerbaijan at the Strawberry Arena. He substituted Viktor Gyökeres (who scored 4 goals) in the 89th minute, as Sweden won 6–0.

Lidberg has described himself as a "powerful forward that can score on anything", which is something then manager Nanne Bergstrand agreed upon, stating that he's strong for his age due to training from an early age. Hammarby's former sporting director Mats Jingblad added that Lidberg is a modern forward that often make runs behind the defenders.

Lidberg grew up mainly in Stockholm and is the second born child to Swedish reality television star and wrestling world champion Martin Lidberg. His uncle is Jimmy Lidberg, a fellow Olympic medalist wrestler. He practiced wrestling as well for several years and was a big talent, but quit to focus on his football instead. Lidberg dreams of playing for Bayern Munich one day and his idol footballer is the German striker Mario Gomez.