Dudley George Helfrich (17 May 1912 – 13 June 1980) was a South African cricketer who played first-class cricket for Griqualand West, Transvaal and North-Eastern Transvaal between 1929 and 1940. He was the eldest of four brothers who played first-class cricket in South Africa.
| Format | Matches | Runs | Avg | 100s/50s | Top Score | Wickets | Bowl Avg | Best Bowling | Catches/St |
| First-class | 28 | 1,301 | 25.01 | 0/10 | 92 | 12 | 28.58 | 3/87 | 11/1 |
