Aleksander Roman "Olek" Balcerowski (born 19 November 2000) is a Polish professional basketball player for Unicaja Malaga of the Spanish Liga ACB. He also represents the senior Poland national team in international competition.
Balcerowski started his career in Górnik Waà Âbrzych, Poland. In 2014, he joined Herbalife Gran Canaria at the age of 14 and entered their youth system. Less than three years later, he became the second youngest player to be on Herbalife Gran Canaria men's team, as he made his first team debut at just 17 years and 14 days old. Having participated in the EuroLeague Basketball Adidas Next Generation Tournament Ciutat de L'Hospitalet twice, Balcerowski made his debut in the EuroCup, playing against Tofaà  S.K. in December 2017.
At the end of the 2020âÂÂ21 EuroCup Basketball competition, he was awarded the EuroCup Basketball Rising Star. He made 65.6 percent of his two-point shots, averaging 6.5 points and 3.7 rebounds in 15 EuroCup games.
In 2020, when playing for Gran Canaria he recorded a career-high 10 rebounds in a game against CB Zamora and a career-best 26 points against CB Villarrobledo.
Following the 2020âÂÂ21 season, he declared for the 2021 NBA draft. In July 2021, he was loaned to Mega Basket of the ABA League for the 2021âÂÂ22 season. On 19 July 2021, he withdrew his name from consideration for the 2021 NBA draft. He left Mega in February 2022. He went undrafted in the 2022 NBA draft.
In the 2022âÂÂ23 EuroCup Basketball season Balcerowski won the title with CB Gran Canaria, contributing to the final win against Türk Telekom B.K. with 5 points and a team-high 5 rebounds.
On 28 July 2023, Balcerowski signed a 1+1 two years contract with EuroLeague powerhouse Panathinaikos.
On 2 September 2024, Balcerowski moved to Spanish club Málaga.
Balcerowski was a member of the Poland national team that finished eighth at the 2019 FIBA World Cup. He was the youngest player at the tournament. In over eight tournament games, he averaged 2.5 points and 1.9 rebounds per game.
His father Marcin played for Górnik Waà Âbrzych in Poland's second and third-tier leagues before a car accident in 1998 that left him using a wheelchair. He later transitioned to wheelchair basketball and became a member of the Polish national team. In 2021, he was named head coach of the Polish wheelchair basketball national team. From September 2023 he joined the wheelchair basketball team of Panathinaikos as well. His mother Sylwia, originally from Lublin, Poland, also has a background in basketball.
|- | style="text-align:left;"| 2018âÂÂ19 | style="text-align:left;"| Gran Canaria | 6 || 2 || 12.3 || .438 || .400 || || 1.7 || .3 || .3 || .3 || 3.0 || 3.0 |- | style="text-align:left;background:#AFE6BA;"| 2023âÂÂ24â | style="text-align:left;"| Panathinaikos | 24 || 9 || 7.6 || .523 || .111 || .700 || 1.3 || .3 || .2 || .4 || 2.8 || 3.1 |- class="sortbottom" | style="text-align:center;" colspan="2"| Career | 30 || 11 || 8.5 || .500 || .263 || .700 || 1.4 || .3 || .3 || .4 || 2.9 || 3.1
|- | style="text-align:left;"| 2017âÂÂ18 | style="text-align:left;" rowspan="4"| Gran Canaria | 2 || 0 || 3.0 || .500 || || || 1.0 || || .5 || .5 || 1.0 || 2.0 |- | style="text-align:left;"| 2020âÂÂ21 | 15 || 2 || 13.7 || .603 || .143 || .737 || 3.7 || .8 || .5 || .7 || 6.5 || 8.3 |- | style="text-align:left;"| 2021âÂÂ22 | 7 || 4 || 14.9 || .561 || .444 || .636 || 1.9 || .6 || .3 || .3 || 8.1 || 6.4 |- | style="text-align:left;"| 2022âÂÂ23 | 22 || 16 || 17.0 || .649 || .409 || .692 || 3.8 || .8 || .5 || 1.0 || 8.6 || 10.6 |- class="sortbottom" | style="text-align:center;" colspan="2"| Career | 46 || 22 || 15.0 || .617 || .368 || .695 || 3.3 || .7 || .5 || .8 || 7.5 || 8.8