1991 in São Tomé and Príncipe

The following lists events that happened during 1991 in the Democratic Republic of São Tomé and Príncipe.

Incumbents

 * President: Leonel Mário d'Alva (acting) (until 3 April), Miguel Trovoada (from 3 April)
 * Prime Minister: Celestino Rocha da Costa (until 7 February), Daniel Daio (from 7 February)

Events

 * 20 January: The first legislative election took place
 * 7 February: Daniel Daio becomes Prime Minister of São Tomé and Príncipe
 * 3 March: The first presidential election took place
 * 2 April: Miguel Trovoada becomes the second president of São Tomé and Príncipe
 * April: the I Constitutional Government of São Tomé and Príncipe began

Sports

 * Santana FC won the São Tomé and Príncipe Football Championship