During his career, Alen Omić wore the jerseys of many famous clubs, including Gran Canaria, Anadolu Efes, Malaga, Hapoel Jerusalem, Crvena zvezda, Budućnosti, Olimpia Milan, Joventut Badalona, and before his first return to Ljubljana he was part of JL Bourg. In Alen’s showcase, we can find the European Cup champion title from 2017 and the Serbian national champion title from 2018.

In the elite Euroleague, Omić played in 67 games, averaging 5.4 points and 3.4 rebounds per game. In his career, Omić showed even better performances in the European Cup matches, where he played 131 games, and we find him at the top of the eternal rankings of the valorization index, two-point shots made, total number of rebounds and total number of offensive and defensive rebounds.

After leaving Ljubljana, he started the 2023/24 season with the Chinese team Guangxi Rhinos, and continued with Paris Metropolitans 92. In France, he averaged 15.6 points, 10.1 rebounds and 2.6 assists per game. With a valorization index of 21.4, he was the most effective basketball player of the French national championship.

In the 2022/23 competition season, Alen Omić set many personal milestones in his career, while at the same time he played in 31 matches in the AdmiralBet ABA League and 17 tests in the 7DAYS EuroCup. He averaged 10.8 points, 8.9 rebounds and 1.3 assists in the European arena, and 11.3 points, 8.7 rebounds and 1.9 assists in the regional league. In this season, he was also selected as the most valuable player of the final tournament of the Spar Cup in Maribor. In the 2021/22 season, Omić played in 22 regional league matches and 15 7DAYS EuroCup matches in the Zmajev jersey. He averaged 8.8 points, 7.3 rebounds and 2.0 assists per game in the European Cup, and 7.9 points, 6.4 rebounds and 1.9 assists per game in the regional league. With outstanding performances in the finals of the national championship with the Helios Suns, where he averaged 13.0 points and 14.0 rebounds per game in three games, he also earned the title of the most valuable player of the final series.