Anna Anastazja Piasecka (March 13, 1882 – August 8, 1980) was a Polish politician, educator and activist.
She served in the Legislative Sejm of the Second Polish Republic.The daughter of Pawel Legowski and Julianny z Balcerowiczów, she was born Anna Anastazja Legowska in Feliksowo near Wabrzezno.
She worked as a Polish language teacher and established the first Polish kindergarten in Kwidzyn in 1919.She was elected to the Sejm for Koscierzyna district in a by-election held in Pomerania in May 1920 as a member of the National Workers' Party.
At the end of 1920, she joined the Polish People's Party "Piast".She was a member of a group which worked towards the East Prussian plebiscite of 1920.She married Jan Piasecki.At the end of 1920, Piasecka moved to Torun where she later died at the age of 98.