21st Guam Legislature

The 21st Guam Legislature was a meeting of the Guam Legislature. It convened in Hagatna, Guam, on January 7, 1991, and ended on January 4, 1993, during the first and second years of Joseph F. Ada's second gubernatorial term.

In the 1990 Guamanian general election, the Democratic Party of Guam won an eleven-to-ten (11–10) majority of seats in the Guam Legislature.

Marilyn A. P. Won Pat died on December 15, 1990, before taking office. The vacancy in the legislature caused by her death was filled by a special election held on April 6, 1991, where Madeleine Z. Bordallo was elected.