Oleksandr Beresch (Ukrainian: Олександр Береш; 12 October 1977, Pervomaisk – 29 February 2004, Kyiv) was a gymnast from Ukraine and Olympic medallist at the 2000 Sydney Games.

Over the next several years he became the preeminent male gymnast on the Ukrainian team, medalling at the World Cup several times.

In February 2004, when Beresch was driving through Kyiv, his Peugeot was struck by a speeding car travelling at over 150 kilometres per hour.

Former Ukrainian Gymnastics Federation president Ludmilla Tourischeva issued a public statement, saying "there are no words to express our grief."

Several memorials to Beresch were held, including an emotional video tribute at the 2004 European Championships.