The Northern Mariana Islands Senate is the upper house of the Northern Mariana Islands Commonwealth Legislature. The Senate consists of nine senators representing three senatorial districts (Saipan & the Northern Islands, Tinian & Aguijan, and Rota), each a multi-member constituency with three senators.
In the November 2007 elections, the three senators up for re-election were all re-elected to another four-year term in the 16th and 17th Senate. The Covenant Party, which lost control of the House, entered into coalition with the Democrats and a lone Independent over the Senate's leadership and voting agenda.
The CNMI Senate is currently controlled by a Republican majority under Senate President Franciso Borja.
Maria Frica Pangelinan was the first woman to serve in the Senate.