Stanislaw Modzelewski (born 15 March 1929 in Szczepankowo near Lomza, died on 13 November 1969 in Warsaw) was a Polish serial killer known as "The Vampire of Galkówek" active in Lódz, Poland during the 1950s.
He completed three classes of primary school, he was a driver by occupation and he worked in Warsaw.
In the period of 1952-1956 and in 1967, he murdered seven women and attempted a murder of six other women.
Although he is believed to have murdered another, eighth victim (he even confessed to it), it was never proven, as the body was never found.
He was sentenced to death and the execution by hanging, which was carried out in November 1969, in Warsaw.