| Joan Jaykoski | |
| Team: | All-American Girls Professional Baseball League |
| Position: | Pitcher / Outfielder |
| Birth Date: | February 23, 1933 |
| Birth Place: | Menasha, Wisconsin |
| Death Place: | Waukesha, Wisconsin |
| Bats: | Right |
| Throws: | Both |
| Teams: |
|
| Highlights: |
|
Joan M. Jaykoski (February 3, 1933 – October 15, 2011) was an American outfielder and pitcher in the All-American Girls Professional Baseball League. Pitching for the Kenosha Comets in 1951, she was 1–3 in 10 games, allowing 26 earned runs and 44 walks in 30 innings of work. At the plate, she hit .214 with nine hits in 42 at-bats. For the Grand Rapids Chicks in 1952, she hit .024, collecting only one hit in 41 at-bats.
She was born with the surname Jaykowski, rather than Jaykoski.[1]