Lenka Němečková (born 20 April 1976) is a Czech former professional tennis player.

She has a career-high WTA singles ranking of 72, achieved on 12 January 1998.

She also has a career-high WTA doubles ranking of 85, achieved on 28 April 1997.

Němečková (married Janoušková) retired from professional tennis in 2006.

This biographical article relating to Czech tennis is a stub.