| Nelson Ball | |
| Birth Date: | 11 October 1908 |
| Birth Place: | Foxton, New Zealand |
| Death Place: | Durban, South Africa |
| Ru Position: | Wing |
| Height: | 1.750NaN0 |
| Weight: | 68kg (150lb) |
| Repyears1: | 1931–36 |
| Repcaps1: | 5 |
| Reppoints1: | 12 |
| Province1: | Wanganui |
| Province2: | Wellington |
| Provinceyears1: | 1927–29 |
| Provinceyears2: | 1930–35 |
| Relatives: | Murray Ball (son) Bill Francis (cousin) |
| School: | Feilding Agricultural High School |
Nelson "Kelly" Ball (11 October 1908 – 9 May 1986) was a New Zealand rugby union player. A wing, Ball represented Wanganui and Wellington at a provincial level, and was a member of the New Zealand national side, the All Blacks, from 1931 to 1936. He played 22 matches for the All Blacks including five internationals.[1]
Ball moved to South Africa in 1948 and lived there for the rest of his life.[1] He was the father of New Zealand cartoonist Murray Ball,[1] and a first cousin of Bill Francis, who played for the All Blacks between 1913 and 1914.[2]