Danuta Wieczorek
| Full name | Danuta Wieczorek-Szwaj | 
|---|---|
| Country (sports) | Poland | 
| Born | 27 April 1949 Pszczyna, Poland  | 
| Singles | |
| Grand Slam singles results | |
| French Open | 1R (1969) | 
| Doubles | |
| Grand Slam doubles results | |
| French Open | 1R (1969) | 
| Grand Slam mixed doubles results | |
| French Open | 1R (1969) | 
Danuta Wieczorek-Szwaj (born 27 April 1949) is a Polish former professional tennis player.
Born in Pszczyna, Wieczorek grew up in the south of Poland and was a Wimbledon junior semi-finalist.
Wieczorek, an eight-time national singles champion, represented Poland in the 1968 Federation Cup competition, winning two singles rubbers. One of those wins came against Astrid Suurbeek in a World Group second round loss to the Netherlands. In 1969 she featured in the singles and doubles mains draw of the French Open.