Penrhyn is a Cook Islands electoral division returning one member to the Cook Islands Parliament. Its current representative is Wilkie Rasmussen, who has held the seat since 2002.
The electorate consists of the atoll of Penrhyn.
Unless otherwise stated, all MPs terms began and ended at general elections.
| width=29% | Name | width=17% | Party | width=15% | Elected | width=15% | Left Office | width=22% | Reason |
| Tangaroa Tangaroa | bgcolor= | Independent | 1965, 1968 | - | Joined new party | ||||
| Tangaroa Tangaroa | bgcolor= | Democrat | 1972, 1974, 1978 | 1983 | Unknown | ||||
| Nihi Vini | bgcolor= | Democrat | 1989 | - | Changed parties | ||||
| Nihi Vini | bgcolor= | Cook Islands Party | - | 1994 | Defeated | ||||
| Tepure Tapaitau | bgcolor= | Cook Islands Party | 1994, 1999 | - | Changed parties | ||||
| Tepure Tapaitau | bgcolor= | Independent | - | 2002 byelection | Defeated in by-election | ||||
| Wilkie Rasmussen | bgcolor= | Cook Islands Party | 2002 byelection, 2004 | - | Changed parties | ||||
| Wilkie Rasmussen | bgcolor= | Democrat | 2004, 2006 | (incumbent) | |||||