1978 Holidays and Events in Puerto Rico, Puerto Rico (USA Territory)
| Additional Information | Date | Name |
|---|---|---|
| 1/1/1978, Sun | New Year's Day | |
| 1/6/1978, Fri | Epiphany | |
| 1/9/1978, Mon | Hostos' Birthday | |
| 1/16/1978, Mon | Martin Luther King, Jr.'s Birthday | |
| 2/20/1978, Mon | President's Day | |
| 3/19/1978, Sun | Palm Sunday | |
| 3/22/1978, Wed | Emancipation Day | |
| 3/24/1978, Fri | Good Friday | |
| 3/26/1978, Sun | Easter | |
| 4/17/1978, Mon | De Diego's Birthday | |
| 5/14/1978, Sun | Mother's Day | |
| 5/29/1978, Mon | Memorial Day | |
| 6/18/1978, Sun | Father's Day | |
| 7/4/1978, Tue | Independence Day | |
| 7/25/1978, Tue | Constitution Day | |
| 7/27/1978, Thu | Barbosa's Birthday | |
| 9/4/1978, Mon | Labor Day / Santiago Iglesias Pantin's Birthday | |
| 10/12/1978, Thu | Columbus Day | |
| 11/11/1978, Sat | Veteran's Day | |
| 11/19/1978, Sun | Discovery of Puerto Rico | |
| 11/23/1978, Thu | Thanksgiving Day | |
| 11/24/1978, Fri | Thanksgiving Holiday | |
| 12/24/1978, Sun | Christmas Eve | |
| 12/25/1978, Mon | Christmas Day | |
| 12/31/1978, Sun | New Year's Eve |