Bielecki ( ; feminine: Bielecka; plural: Bieleccy) is a Polish-language surname. It is related to a number of surnames in other languages. People Adam Bielecki (born 1983), Polish climber Barbara Bielecka (born 1931), Polish architect Czesław Bielecki (born 1951), Polish architect and politician Jan Krzysztof Bielecki (born 1951), Polish politician Jerzy Bielecki (disambiguation), multiple individuals Karol Bielecki (born 1982), Polish handball player Maciej Bielecki (born 1987), Polish cyclist Mike Bielecki (born 1959), American baseball player Stanisław Bielecki (born 1946), Polish chemist Tadeusz Bielecki (1901–1982), Polish politician See also Volodymyr Biletskyy (born 1950), Ukrainian scientist, politician, activist Polish-language surnames