Ethna Frances Rouse (; 29 December 1937 – 7 June 2023) was a New Zealand cricketer who played as a left-handed batter. She appeared in one Test match and three One Day Internationals for New Zealand in 1972 and 1973. She played domestic cricket for Canterbury.
| Format | Matches | Runs | Avg | 100s/50s | Top Score | Wickets | Bowl Avg | Best Bowling | Catches/St |
| WTest | 1 | 36 | 18.00 | 0/0 | 35 | – | – | – | 0/– |
| WODI | 3 | 90 | 30.00 | 0/0 | 48 | – | – | – | 0/– |
| WFC | 43 | 1,228 | 22.32 | 2/5 | 116* | 19 | 12.11 | 3/9 | 23/– |
