- For other uses, see Donna.
- See Withers for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
- See McCoy for other articles with titles that contain, either by relationship or by coincidence, this character's surname.
- This character is a member of the McCoy family.
Donna Withers (nee McCoy) was the daughter of David Andrew and Eleanora McCoy, as well as the sister of Leonard McCoy. By 2255, Donna was residing on Centaurus with her husband Fred Withers, and the couple cared for their niece, Joanna McCoy, while her father was away as a doctor in Starfleet. (TOS novel: Crisis on Centaurus).