Agata Karczmarek (born Jaroszek on November 29, 1963 in Warsaw, Mazowieckie) is a former long jumper from Poland.
Her most successful contest was in 1997 when she won a bronze medal at the 1997 IAAF World Indoor Championships. Her personal best jump was 6.98m, set in Lublin 1988. She retired after the 2000 season.
Karczmarek started her career as a gymnast, competing for Poland at the 1980 Summer Olympics in Moscow, USSR.