International Twenty20 Batting and Fielding Against Each Opponent by Kane Williamson
| Opponent | Matches | Inns | Not Out | Runs | HS | Ave | 100 | 50 | Ct | St |
| Afghanistan | 2 | 2 | 1 | 49 | 40* | 49.00 | 0 | 0 | 2 | |
| Australia | 11 | 11 | 0 | 232 | 85 | 21.09 | 0 | 2 | 6 | |
| Bangladesh | 6 | 5 | 1 | 217 | 73* | 54.25 | 0 | 2 | 4 | |
| England | 8 | 8 | 1 | 255 | 72 | 36.42 | 0 | 2 | 3 | |
| India | 13 | 13 | 1 | 419 | 95 | 34.91 | 0 | 3 | 3 | |
| Ireland | 1 | 1 | 0 | 61 | 61 | 61.00 | 0 | 1 | 1 | |
| Namibia | 1 | 1 | 0 | 28 | 28 | 28.00 | 0 | 0 | 0 | |
| Netherlands | 1 | 1 | 0 | 29 | 29 | 29.00 | 0 | 0 | 1 | |
| Pakistan | 21 | 21 | 4 | 667 | 72* | 39.23 | 0 | 6 | 14 | |
| Papua New Guinea | 1 | 1 | 1 | 18 | 18* | | 0 | 0 | 0 | |
| Scotland | 1 | 1 | 0 | 0 | 0 | 0.00 | 0 | 0 | 0 | |
| South Africa | 7 | 7 | 1 | 189 | 51 | 31.50 | 0 | 1 | 2 | |
| Sri Lanka | 5 | 5 | 1 | 139 | 53 | 34.75 | 0 | 1 | 6 | |
| Uganda | 1 | 0 | | | | | | | 0 | |
| West Indies | 10 | 10 | 1 | 184 | 47 | 20.44 | 0 | 0 | 3 | |
| Zimbabwe | 4 | 3 | 1 | 88 | 48 | 44.00 | 0 | 0 | 0 | |