1966 Holidays and Events in Puerto Rico, Puerto Rico (USA Territory)
| Additional Information | Date | Name |
|---|---|---|
| 1/1/1966, Sat | New Year's Day | |
| 1/6/1966, Thu | Epiphany | |
| 1/10/1966, Mon | Hostos' Birthday | |
| 1/17/1966, Mon | Martin Luther King, Jr.'s Birthday | |
| 2/21/1966, Mon | President's Day | |
| 3/22/1966, Tue | Emancipation Day | |
| 4/3/1966, Sun | Palm Sunday | |
| 4/8/1966, Fri | Good Friday | |
| 4/10/1966, Sun | Easter | |
| 4/18/1966, Mon | De Diego's Birthday | |
| 5/8/1966, Sun | Mother's Day | |
| 5/30/1966, Mon | Memorial Day | |
| 6/19/1966, Sun | Father's Day | |
| 7/4/1966, Mon | Independence Day | |
| 7/25/1966, Mon | Constitution Day | |
| 7/27/1966, Wed | Barbosa's Birthday | |
| 9/5/1966, Mon | Labor Day / Santiago Iglesias Pantin's Birthday | |
| 10/12/1966, Wed | Columbus Day | |
| 11/11/1966, Fri | Veteran's Day | |
| 11/19/1966, Sat | Discovery of Puerto Rico | |
| 11/24/1966, Thu | Thanksgiving Day | |
| 11/25/1966, Fri | Thanksgiving Holiday | |
| 12/24/1966, Sat | Christmas Eve | |
| 12/25/1966, Sun | Christmas Day | |
| 12/31/1966, Sat | New Year's Eve |