National and Other Holidays
April 2015
| Date | Weekday | Holiday | Type | Where Observed |
| 1 | Wednesday | April Fool's Day | Observed | |
| 2 | Thursday | Maundy Thursday | Christian | |
| 2 | Thursday | Pascua Florida Day | Observed | Local FL |
| 3 | Friday | Good Friday | State Holiday | 13 States |
| 4 | Saturday | Holy Saturday | Christian | |
| 5 | Sunday | Easter Sunday | Observed Christian |
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| 6 | Monday | Easter Monday | Christian | |
| 6 | Monday | National Tartan Day | Observed | |
| 10 | Friday | Orthodox Good Friday | Orthodox | |
| 11 | Saturday | Last Day of Passover | Jewish | |
| 11 | Saturday | Orthodox Holy Saturday | Orthodox | |
| 12 | Sunday | Orthodox Easter | Orthodox | |
| 13 | Monday | Orthodox Easter Monday | Orthodox | |
| 13 | Monday | Thomas Jefferson's Birthday | Observed | |
| 15 | Wednesday | Yom HaShoah | Jewish | |
| 15 | Wednesday | Tax Day | Observed | |
| 15 | Wednesday | Father Damien Day | Observed | Local HI |
| 16 | Thursday | Emancipation Day | State | D.C. |
| 20 | Monday | Patriot's Day | State | ME, MA |
| 21 | Tuesday | San Jacinto Day | State | TX |
| 21 | Tuesday | National Library Worker's Day | Observed | |
| 22 | Wednesday | Oklahoma Day | Observed | Local OK |
| 22 | Wednesday | Administrative Professionals Day | Observed | |
| 23 | Thursday | Yom Ha'atzmaut | Jewish | |
| 23 | Thursday | Take your Daughters & Sons to Work Day | Observed | |
| 24 | Friday | Arbor Day | State | NE |
| 27 | Monday | Confederate Memorial Day | Observed | Local NE |
| 27 | Monday | Confederate Memorial Day | State | AL, FL, GA, MS |
