Medieval Costume Ideas for Kids
Knights with foam swords and princesses in long dresses — Medieval Day is dramatic, fun, and surprisingly easy to DIY with a tunic and a cardboard crown.
Top Picks for Medieval
We earn a small commission if you shop through the links below — at no extra cost to you.

Kids Medieval Costume Boys Viking Tunic Knight Warrior Renaissance Shirts with Belt

G.C Kids Renaissance Shirt Cloak Costume Belt Boys Medieval Costume Accessories Outfit Knight Hooded Cape Halloween Cosplay

Spooktacular Creations Medieval Knight Costume for Kids, Boys Dragon Knight Outfit, California Costume for Halloween DressUp

Renaissance Medieval Dress Princess Dress Girls Irish Costume Cosplay Retro Gown Birthday Halloween Xmas Party

Ezuwail Girls Renaissance Dress Outfit Hooded Kids Medieval Princess Costume Sets for Halloween, Ren Fair

Super Z Outlet Children's Foam Toy Medieval Joust Sword & Shield Knight Set Lightweight Safe for Birthday Party Activities, Event Favors, Toy Gifts
What to Wear
Budget Breakdown
A foam sword ($4-7) plus a solid-color shirt from home belted with rope as a tunic. Or a crown cut from gold poster board ($2 for the board) and a long dress from the closet. Under $10 gets you a recognizable medieval look with minimal shopping.
A knight tunic set with a foam sword and shield, or a medieval princess dress with a tiara. These pre-made costumes in the $15-22 range look great and save you the crafting time. Add a foam sword or crown for the finishing touch.
Full medieval costume set with multiple accessories — knight armor with sword, shield, helmet, and tabard, or a princess gown with crown, wand, and cape. These are Halloween-grade costumes that look spectacular in photos and get reused.
DIY & Last-Minute Ideas
Pro Tips for Parents
- 1Foam swords are the safest option for school — schools almost always allow them because they can't hurt anyone. Plastic swords are more likely to get confiscated. Check your school's weapon-prop policy before buying anything rigid.
- 2A gold poster board crown is the single best medieval DIY. It costs $2, takes 5 minutes, and works for knights, queens, kings, and princes. Make a spare in case the first one crumples.
- 3Renaissance Faire season (spring) means the best Amazon inventory and prices. If Medieval Day is in spring, you'll have the widest selection of costumes.
- 4An oversized t-shirt belted with rope is a perfectly valid tunic. Don't overthink the clothing — the accessories (sword, crown, shield) are what make the costume.
- 5Wizard is the easiest look to assemble from home: bathrobe + stick wand + paper hat. No purchases needed.
Frequently Asked Questions
- Are toy swords allowed at school?
- Foam swords are almost always allowed because they're soft and can't cause injury. Plastic or wooden swords may be restricted depending on your school's prop policy. When in doubt, ask the teacher and default to foam.
- Can boys dress as kings or wizards instead of knights?
- Absolutely. Medieval Day isn't limited to knights and princesses. Kings, wizards, jesters, monks, archers, and even dragons are all valid medieval characters. A crown and a robe is a king. A pointed hat and a wand is a wizard.
- What if my kid's princess dress is too fancy for school?
- Layer it practically — add leggings underneath and a cardigan or jacket over it. A simpler approach is a long-sleeve solid-color top with a long skirt and a crown. It reads as medieval princess without the impractical formal wear.
- Does the costume need to be historically accurate?
- Not even close. This is elementary school spirit week, not a history exam. A gray t-shirt with a cardboard sword is a perfectly valid knight. A sparkly dress with a plastic tiara is a perfectly valid princess. Fun matters more than accuracy.
Planning Spirit Week?
Create a free, printable flyer with Medieval and your other theme days in under 2 minutes.
Create a Free Flyer →Other Popular Themes
As an Amazon Associate, SpiritWeekHQ earns from qualifying purchases.



