| Birth Date: | 13 June 1923 |
| Birth Place: | Toruń, Poland |
| Death Date: | 28 February 1975 (aged 51) |
| Death Place: | Toruń, Poland |
| Sport: | Athletics |
| Event: | Javelin throw |
| Pb: | 39.85 m (1948) |
| Club: | Pomorzanin, Toruń Związkowca Kraków |
| Show-Medals: | yes |
Melania Maria Sinoracka (13 June 1923 – 28 February 1975) was a Polish javelin thrower. She competed at the 1948 Olympics and placed 11th.
Sinoracka was born in a working family, and in 1937 began working as a saleswoman for the Toruń Railway. After World War II she was moved to the State Railways Directorate in Toruń and stayed there until 1950. In 1950–1952 she worked at a factory of water meters, and in 1952–1957 at a garment factory.
Sinoracka took up gymnastics in 1937 and changed to athletics in 1938. She won the Polish javelin title in 1947 and 1948; she was also successful in the shot put and played volleyball at the national level.