100 Birthday Party Themes for Kids & Adults
Browse dinosaur, unicorn, superhero, princess, space, mermaid, gaming, and 90+ more themes. Get a free AI-generated party plan with checklist, menu, activities, and decorations in 60 seconds.
No signup required. Works for toddlers, kids, teens, and milestone adult birthdays.
What is a Themed Birthday Party?
A themed birthday party is a celebration where decorations, activities, food, music, and games all follow a cohesive theme — creating a memorable, immersive experience for the birthday star and guests.
What's Included in a Themed Party Plan?
PartyGenius AI generates all of this for any theme in 60 seconds — free, no signup required.
Kids Birthday Party Themes
Most popular birthday party themes for toddlers and children ages 2-10. Dinosaur, unicorn, superhero, and princess parties are trending in 2026.
Adventure Party Themes
Exciting adventure-themed birthday parties for explorers. Pirate, mermaid, ocean, and camping themes perfect for active kids.
Pop Culture & Character Themes
Birthday party themes inspired by favorite shows, games, and characters. Gaming, Frozen, Paw Patrol, Pokemon, and Minecraft parties.
Teen & Tween Party Themes
Cool birthday party ideas for tweens and teenagers ages 10-17. Movie night, spa day, neon glow, and sweet 16 celebration themes.
Adult & Milestone Birthday Themes
Sophisticated birthday party themes for adults. 30th, 40th, and 50th milestone celebrations, wine tasting, casino night, and elegant garden parties.
Create a Party Plan for Any Theme
Don't see your theme? PartyGenius AI can generate a complete party plan for any theme you can imagine — custom characters, unique ideas, or trending themes for 2026.
Create Free Party PlanNo signup required. Get checklist, menu, activities, and shopping list in 60 seconds.