Lucyna Kałek (née Langer, born 9 January 1956) is a retired Polish hurdler.

Born in Mysłowice, Langer first ran under 13 seconds for the 100 metres hurdles with 12.89 secs in 1978, improving to 12.62 in 1979, when winning the Universiade title in Mexico City.

When her Polish team-mate Grażyna Rabsztyn broke the world record with 12.36 secs in June 1980, Langer finished second in 12.44, to move to second on the world all-time list.

She would go on to win an Olympic bronze medal six weeks later in Moscow, running 12.65.

In 1981 she beat American Stephanie Hightower, in the IAAF Golden Meet 100 hurdles in Berlin, in a time of 12.91 As Lucyna Kalek, she won the 1982 European title in Athens, in a season's best of 12.45 secs.