Public holidays
1661, Portugal, Açores
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, 1 January 1661 | Ano Novo |
| 2 | Friday, 15 April 1661 | Sexta-Feira Santa |
| 3 | Monday, 25 April 1661 | Dia da Liberdade |
| 4 | Sunday, 1 May 1661 | Dia do Trabalhador |
| 5 | Monday, 6 June 1661 | Dia dos Açores |
| 6 | Friday, 10 June 1661 | Dia de Portugal |
| 7 | Thursday, 16 June 1661 | Corpo de Deus |
| 8 | Monday, 15 August 1661 | Assunção |
| 9 | Wednesday, 5 October 1661 | Implantação República |
| 10 | Tuesday, 1 November 1661 | Todos os Santos |
| 11 | Thursday, 1 December 1661 | Independência |
| 12 | Thursday, 8 December 1661 | Imaculada Conceição |
| 13 | Sunday, 25 December 1661 | Natal |