Public holidays
1661, España, País Vasco
| # | Date | Public holiday |
|---|---|---|
| 1 | Saturday, 1 January 1661 | Año Nuevo |
| 2 | Thursday, 6 January 1661 | Epifanía del Señor |
| 3 | Thursday, 14 April 1661 | Jueves santo |
| 4 | Friday, 15 April 1661 | Viernes Santo |
| 5 | Monday, 18 April 1661 | Lunes de Pascua |
| 6 | Sunday, 1 May 1661 | Fiesta del Trabajo |
| 7 | Monday, 25 July 1661 | Santiago Apóstol |
| 8 | Monday, 15 August 1661 | Asuncíon de la Virgen |
| 9 | Wednesday, 12 October 1661 | Fiesta nacional de España |
| 10 | Tuesday, 1 November 1661 | Todos los Santos |
| 11 | Tuesday, 6 December 1661 | Día de la Constitución Española |
| 12 | Thursday, 8 December 1661 | Immaculada Concepcíon |
| 13 | Sunday, 25 December 1661 | Día de Navidad |