12th Cook Islands Parliament

The 12th Cook Islands Parliament was a term of the Parliament of the Cook Islands. Its composition was determined by the 1999 election, held on 16 June 1999. It lasted until 2004.

Initial MPs
The seat of Pukapuka–Nassau was initially vacant due to a tied vote and the need for a judicial recount.

Summary of changes

 * The seat of Pukapuka–Nassau was found to be a dead tie after a judicial recount. The 1999 Pukapuka-Nassau by-election was found to be invalid. A second by-election was held on 28 September 2000 and resulted in the election of the Democratic Party's Tiaki Wuatai.
 * In 2002 Tepure Tapaitau was disqualified from Parliament, precipitating the 2002 Penrhyn by-election. It was won by Wilkie Rasmussen, who was then a CIP candidate.
 * Maria Heather died in June 2003, precipitating the 2003 Rua'au by-election. She was replaced by her husband, Geofrey Heather.