We’ve seen plenty of Harry Potters, Matildas and many Cats in Many Hats, and have even been introduced to some that we’ve never heard of (I’m still not 100 per cent sure who Dog Man is).
You’ve truly done north Northamptonshire proud with your costumes, and we’ve had a wonderful time sifting through them all, so much so that we’ve put together another photo gallery of some of our favourites.
Let us know which ones stood out to you, and what you plan to go as next year!

1. World Book Day 2026 - Thank you for your submissions!
World Book Day 2026 continues: even more of your submissions Photo: UGC

2. Even more creative costumes as Northamptonshire celebrates World Book Day 2026
Willow, aged 8, as Wednesday Addams Photo: Neave Speirs

3. Even more creative costumes as Northamptonshire celebrates World Book Day 2026
Victoria Primary Academy staff as Alice in Wonderland characters Photo: Victoria Primary Academy

4. Even more creative costumes as Northamptonshire celebrates World Book Day 2026
Mersey, aged 4, with Spook the Labrador as Kaleb Cooper Photo: Freya Hill