Ana Ambrazienė (14 April 1955 – 12 February 2025), also known as Anna Kostecka (or Kastetskaya), was a Lithuanian hurdler.

[1] Ambrazienė she was born in Vilnius on 14 April 1955, and was of Polish descent.

Her personal best in the women's 400 m hurdles was 54.02 at a meet in Moscow on 11 June 1983.

In 1985, Ambrazienė graduated from the Lithuanian Institute of Physical Education.

This biographical article relating to Lithuanian athletics is a stub.