Maria Piątkowska (née Ilwicka, later Chojnacka; born 24 February 1931) is a former Polish sprinter, hurdler, and long jumper.
She was a three-time olympian (Helsinki 1952, Rome 1960 and Tokyo 1964) and participated in three different European Championships (1954 Bern, 1958 Stockholm and 1962 Belgrade).
She was a member of a world record-setting 4x100 metre relay team on 13 September 1964 in Łódź, Poland, with the time of 44.2 s.
She won three medals at two different European championships: bronze in 4x100 m relay in 1958 in Stockholm and gold in 4x100 m relay and bronze in 80 metre hurdles in 1962 in Belgrade.
She is the wife of a fellow Polish Olympian, discus thrower Edmund Piątkowski.
She was born in Goleni, Romania, now in Moldova.
- 1938: Germany (Kohl, Krauß, Albus, Kühnel)
- 1946: Netherlands (van der Kade-Koudijs, Witziers-Timmer, Adema, Blankers-Koen)
- 1950: Great Britain (Hay, Desforges, Hall, Foulds)
- 1954: Soviet Union (Krepkina, Uliskina, Itkina, Turova)
- 1958: Soviet Union (Krepkina, Kepp, Polyakova, Maslovskaya)
- 1962: Poland (Ciepły, Sobotta, Szyroka, Piątkowska)
- 1966: Poland (Bednarek, Straszynska, Kirszenstein, Kłobukowska)
- 1969: East Germany (Höfer, Meissner, Podeswa, Vogt)
- 1971: West Germany (Schittenhelm, Helten, Irrgang, Mickler)
- 1974: East Germany (Maletzki, Stecher, Heinich, Eckert)
- 1978: Soviet Union (Anisimova, Maslakova, Kondratyeva, Storozhkova)
- 1982: East Germany (Walther, Eckert, Rieger, Göhr)
- 1986: East Germany (Gladisch, Rieger, Brestrich-Auerswald, Göhr)
- 1990: East Germany (Möller, Krabbe, Behrendt, Günther)
- 1994: Germany (Paschke, Knoll, Zipp, Lichtenhagen)
- 1998: France (Benth, Bangué, Félix, Arron)
- 2002: France (Combe, Hurtis, Félix, Sidibé)
- 2006: Russia (Gushchina, Rusakova, Khabarova, Grigoryeva)
- 2010: Ukraine (Povh, Pohrebnyak, Ryemyen, Bryzghina)
- 2012: Germany (Günther, Cibis, Pinto, Sailer)
- 2014: Great Britain (Philip, Nelson, Williams, Henry)