September
September Celebrity Birthdays / National Days
| 1 | Barry Gibb | Gloria Estefan | Zendaya |
| Tofu Day | Letter Writing Day | No Rhyme Or Reason Day | |
| 2 | Sir Keir Starmer | Keanu Reeves | Salma Hayek |
| International Bacon Day | World Beard Day | World Coconut Day | |
| 3 | Steve Jones (Sex Pistols) | Charlie Sheen | Fearne Cotton |
| Welsh Rarebit Day | Bowling League Day | Skyscraper Day | |
| 4 | Mark Ronson | Beyoncé | James Bay |
| 5 | Freddy Mercury | Michael Keaton | Paddy Considine |
| World Samosa Day | Cheese Pizza Day | Be Late For Something Day | |
| 6 | Idris Elba | Mathew Horne | Kerry Katona |
| Read A Book Day | National Coffee Ice Cream Day | Fight Procrastination Day | |
| 7 | Gloria Gaynor | Chrissie Hynde | Shannon Elizabeth |
| Superhuman Day | Napoleon Day | Buy A Book Day | |
| 8 | Martin Freeman | Pink! | Richard Hughes |
| Star Trek Day | Literacy Day | Ampersand Day | |
| 9 | Dave Stewart | Hugh Grant | Michael Buble |
| Teddy Bear Day | Wonderful Weirdos Day | Emergency Services Day (UK) | |
| 10 | Carol Decker (T’Pau) | Colin Firth | Guy Ritchie |
| National Swap Ideas Day. | |||
| 11 | Johnny Vegas | Richard Ashcroft | Chris “Ludacris” Bridges |
| Make Your Bed Day | No News Is Good News Day | ||
| 12 | Jennifer Hudson | Alfie Allen (GoT) | Barry Andrews (XTC) |
| Chocolate Milkshake Day | Video Games Day | ||
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| 21 | Jason Derulo | ||
| 22 | Toni Basil | ||
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| 27 | Avril Lavigne | ||
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Celebrity Birthdays: January | February | March | April | May | June | July | August | September | October | November | December