| Full name: | Olivia Nicole Gain |
| Born: | 2nd January 2002, Dunedin, Otago, New Zealand |
| Batting: | Right-hand batter |
| Wicket-keeper | |
| Relations: | Brother: JT Gain; Brother: MV Gain |
| Teams: | Otago Women (Women's List A: 2016/17-2024/25); Otago Women (Women's Twenty20: 2020/21-2024/25); New Zealand Under-19s Women (Women's Under-19 International Twenty20: 2022/23); All teams |
| Lists of matches and more detailed statistics | |
| Women's List A Career Batting and Fielding (2016/17-2024/25) | |||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | SRate | Ct | St | |
| Overall | 60 | 55 | 6 | 891 | 67* | 18.18 | 0 | 4 | 63.10 | 13 | 1 |
| Women's Twenty20 Career Batting and Fielding (2020/21-2024/25) | |||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | SRate | Ct | ||
| Overall | 45 | 38 | 4 | 389 | 48 | 11.44 | 0 | 0 | 93.50 | 10 | |
| Women's Under-19 International Twenty20 Career Batting and Fielding (2022/23) | |||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | SRate | Ct | ||
| New Zealand Under-19s Women | 4 | 4 | 0 | 64 | 40 | 16.00 | 0 | 0 | 103.22 | 1 | |
| Women's Super Smash Career Batting and Fielding (2020/21-2024/25) | |||||||||||
| M | I | NO | Runs | HS | Ave | 100 | 50 | SRate | Ct | ||
| Otago Women | 43 | 36 | 4 | 371 | 48 | 11.59 | 0 | 0 | 93.21 | 9 | |