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Your baby’s first birthday party is such a huge milestone, and choosing the perfect theme makes it even more memorable. Whether you’re after a sweet animal theme, a fun vehicle party, or a timeless classic, these popular boy 1st birthday themes are guaranteed to delight your little one and your guests. ✨

Planning a party for your son, nephew, or favorite little guy? You’re in the right place!
We’ve rounded up the popular boy birthday themes for 2025—from classic favorites like dinosaurs and pirates to trending ideas like Minecraft and Paw Patrol. Whether you're after something adventurous, budget-friendly, or super creative, this list has something perfect for every personality and age.

If you are planning to host a birthday party for a teen in 2025, don't miss these 35 on-trend teen birthday party ideas for both boys and girls.