Invite Ariel, Flounder, and Sebastian to your child's party with these Little Mermaid birthday ideas. These magical and whimsical party ideas – including Little Mermaid birthday invitations, mermaid party supplies, mermaid games, costumes, and more – will have all your guests feeling like they’ve finally reached never-never-land!

Best for

Girls aged three through ten love the mystery of a mermaid party.

Party Planning

For peace of mind, begin planning your mermaid birthday bash six to eight weeks in advance. This will allow you time to gather all the supplies that you need, including mermaid party decorations, gifts, and menu items. Planning ahead also gives your guests time to RSVP and make travel plans, if needed. Don't panic if you find yourself short on time; you can still plan a great party! Planning ahead simply reduces the risk of conflicts with guests' plans and may increase your party’s attendance.

For mermaid party invitations, use white card stock or construction paper folded in half, and decorate it with mermaid pictures and shiny stickers. For a more sophisticated look, grab some princess or mermaid scrapbook stickers to decorate your invitations. You can also use our easy printable mermaid invitations. Or, if you’re short on time, purchase personalized or pre-printed little mermaid birthday invitations online. We recommend mailing your invitations three to four weeks prior to the party—any sooner and your guests may forget, any later and your guests may already have plans.

To simplify the rest of the party planning process, check out our Party Planning Timeline, and read the paragraphs below for information on selecting mermaid party decorations, mermaid party supplies, games, activities, and more for your mermaid birthday party.

What You’ll Need

If you plan to use paper tableware and mermaid party supplies, our Suggested Party Supply List may be quite helpful. Please note that you may not need everything on the list; it is intended only as a guide.

For this party, think pink (feminine) and blue (the color of the ocean) as your main color scheme. Simple balloons and pretty pastel streamers work perfectly. For goodie bags, purchase mermaid party favors, such as pretend makeup, mermaid stickers, glitter nail polish, squirt fish, assorted candies. Place all of these items inside clear or printed cellophane bags, and tie the bags closed with pretty, pastel-colored ribbons.