Yam Wolczak (Hebrew: ים וולצ'ק; born 7 May 2003) is an Israeli judoka.

[6] At the 2022 European Junior Championships in Prague in the Czech Republic in September he won the bronze medal.

[5] Wolczak competed at the 2023 Israeli Championships in Eilat in January, winning the gold medal.

[4] Wolczak competed at the 2023 Sarajevo European Open in Bosnia and Herzegovina in September, winning the gold medal.

[5] Wolczak won a silver medal at the 2024 Tbilisi Grand Slam in Georgia in March, at 20 years old.