| 1/1/2003, Wed | New Year's Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 4/13/2003, Sun | Palm Sunday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/18/2003, Fri | Good Friday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/19/2003, Sat | Holy Saturday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/20/2003, Sun | Easter |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 4/21/2003, Mon | Easter Monday |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 5/5/2003, Mon | Belfast City Marathon |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- Foot Race. Same day as Early May Bank Holiday
|
| 5/5/2003, Mon | Early May Bank Holiday |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 5/26/2003, Mon | Spring Bank Holiday |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 6/14/2003, Sat | Queen's Birthday |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 7/12/2003, Sat | Orangeman's Day & Parade |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 7/14/2003, Mon | Orangeman's Day & Parade: Additional Observance Day |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 8/25/2003, Mon | Summer Bank Holiday |
- Religion
- –
- Disrespectful to Hold an Event
- –
|
| 10/31/2003, Fri | Halloween |
- Religion
- –
- Disrespectful to Hold an Event
- –
- Note
- Annual fireworks display
|
| 12/24/2003, Wed | Christmas Eve |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/25/2003, Thu | Christmas Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/26/2003, Fri | Boxing Day |
- Religion
- Christian
- Disrespectful to Hold an Event
- –
|
| 12/31/2003, Wed | New Year's Eve |
- Religion
- –
- Disrespectful to Hold an Event
- –
|