* Senior club appearances and goals counted for the domestic league only.
† Appearances (Goals).
Jan Konrad Liberda (born November 26, 1936 in Bytom, then Beuthen, Germany) is a retired Polish football forward. Liberda played mostly for one team, Polonia Bytom, where he remained since 1949, until in 1969. He ended his career in 1971 at AZ. He twice was the topscorer of the Ekstraklasa, in 1959 with 21 goals, and in 1962 with 16 goals. Also, in 1962, he won championship of Poland. Altogether, Liberda played in 304 Polonia's games, scoring 145 goals.
Liberda 35 times capped for Poland, scoring 8 goals. He debuted on May 20, 1959 in Hamburg, in a 1-1 tie with Western Germany.