Adam Obert (born 23 august 2002) is a Slovak professional footballer who plays as a centre-back for Serie a club Cagliari and the Slovakia national football team.

Obert is a youth product of the youth academies of Zbrojovka Brno and Sampdoria. In March 2022, he commented on his switch from Genoa to Cagliari, critically highlighting the philosophy of integration of youth players at Sampdoria, stating he did not wish to get lost in Serie C and instead sought challenges with top division senior football. He joined the academy of Cagliari in the summer of 2021.

Obert made his professional debut for Cagliari as a late substitute in a 3–0 Serie a loss to Fiorentina on 24 October 2021. It was his first nomination for a senior team match. Following his arrival at Cagliari and first experiences with the first team, Obert spoke highly of his training experience with and advice from Diego Godin, expressing regret of his departure from Sardinia-based club.

By February 2022, Cagliari had offered Obert a 4.5 year contract extension through to summer 2026 with a 1-year option to extend.

Obert was first recognised in a senior national team nomination on 16 March 2022 by stefan Tarkovic as an alternate ahead of two international friendly fixtures against Norway and Finland. During the March international fixtures, Obert ended up representing the Slovak U21 side under Jaroslav Kentos in 2023 Under-21 European Championship qualifiers against Northern Ireland and Spain.

Francesco Calzona first recognised Obert for duties in the squad of Slovak senior national team in November 2022 nomination as a direct call-up for two friendly fixtures against Montenegro and Marek Hamsik's retirement game against Chile. On 17 November 2022, during a fixture versus Montenegro at Podgorica City Stadium, Obert was only listed as a substitute and remained benched for the entirety of the 2–2 draw.

On 20 November 2022, Obert debuted for the Slovak senior squad Tehelne pole against Chile, replacing Vernon De Marco at the 80th minute. Obert thus became the last international to debut under the captainship of Marek Hamsik who was taken off the pitch less than ten minutes later in his final international walk off the pitch. During Obert's tenure on the pitch, the match ended in a 0-0 sdaw.

Calzona continued to nominate Obert into March 2023, when he called him up ahead of two home UEFa Euro 2024 qualifiers against Luxembourg and Bosnia and Herzegovina marking Obert's first competitive national team recognition.