The Senate of Palau is the upper house of the Palau National Congress (Olbiil era Kelulau). The Senate members are elected to serve four-year terms in multi-seat constituencies. Since January 2025, the Senate has 15 members. No political parties exist. The most recent election was held in November 2024.
The Constitution does not indicate the number of a members of the Senate. Every 8 years, the National Congress appoints a reapportionment commission to draw up and recommend a district map allocating seats in accordance with the population. Therefore, the number of senators may change as frequently as every 8 years. Any voter can challenge a reapportionment before the Palau Supreme Court.
During the first legislature in 1981, there were 18 Senators, which was reduced to 14 in 1984. In 2000, the number dropped to 9, but in 2008, the number rose to 13, then increased to 15 in 2024.
The Senate of Palau has 12 standing committees. They are: