Michał Woysym-Antoniewicz (July 7, 1897 – December 1, 1989) was a Polish equestrian who competed in the 1928 Summer Olympics. He was born in Kraków and died in Austin, Texas, United States.

Olympic medal record
Men's Equestrian
Silver medal – second place 1928 Amsterdam Team jumping
Bronze medal – third place 1928 Amsterdam Team three-day event
Michał Antoniewicz

He won the silver medal in the team jumping with his horse Readgleadt. In the individual jumping he finished twentieth.

In the team three-day event he won the bronze medal with his horse Moja Miła after finishing nineteenth in the individual three-day event.

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