Best Girls' Costumes Under $100 (2026)

We ranked options under $100 by user ratings, material quality, safety features, ease of care, and overall value score

This roundup highlights girls' costume options under $100 chosen for durable construction, child-friendly features, and value. Selections emphasize clear sizing, washable fabrics, age-appropriate styling, and positive user ratings to help caregivers compare options quickly

Top Picks

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    Girls Mermaid Princess Dress for Ariel

    Girls Mermaid Princess Dress for Ariel

    PURFEEL • ★ 4.0/5 • Budget

    Mermaid-themed kids dress with layered teal tulle and white embroidered top. Includes matching accessories; designed for comfort with multi-layer fullness. Customers note quality, fit, and magical look

    • layered tulle for volume
    • adjustable bowknot front/back
    • includes accessories
    Check current price on Amazon →
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    Girls Mermaid Princess Dress with Headband Accessory

    Girls Mermaid Princess Dress with Headband Accessory

    PURFEEL • ★ 4.0/5 • Budget

    Mermaid-themed kids dress with layered teal tulle and embroidered top. Includes optional back bow and crown accessories for dress-up play; customers note its full, comfortable fit and festive look

    • two-layer teal tulle with underskirt for comfort
    • off-shoulder style with elegant bowknot
    • includes crown accessories
    Check current price on Amazon →
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    Girls Mermaid Princess Dress — PURFEEL

    Girls Mermaid Princess Dress — PURFEEL

    PURFEEL • ★ 4.0/5 • Budget

    Mermaid-inspired kids dress with teal tulle layers and embroidered top. Includes headband or jewelry accessories; versatile for parties, cosplay, and photoshoots. Customers note its fit, full skirt, and magical look

    • embroidery details with tulle layers
    • over sized bowknot with front/back versatility
    • includes matching accessories
    Check current price on Amazon →
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    Girls Mermaid Princess Dress with Headband

    Girls Mermaid Princess Dress with Headband

    PURFEEL • ★ 4.0/5 • Budget

    Mermaid-themed kids dress with teal tulle layers and white-embroidery accents. Comfortable all-day wear with detachable back bow for styling options. Customer note: the fullness of the skirt adds a magical, princess-like look

    • 3-layer full skirt
    • detachable bowknot
    • includes accessories
    Check current price on Amazon →
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    ReliBeauty Pioneer Girl Dress Colonial Prairie Costume

    ReliBeauty Pioneer Girl Dress Colonial Prairie Costume

    ReliBeauty • ★ 4.0/5 • Budget

    Cute pioneer dress costume with bonnet and pinafore; features cotton lining and lace collar for comfortable wear. Customers note good quality fabric and comfortable fit

    • cotton lining for comfort
    • complete set with bonnet and pinafore
    • dress features flower print and self-tie neckline
    Buy at Amazon →

Buying Guide

Check sizing and fit

Look for toddler vs. child sizing and flexible elements like elastic waists or adjustable straps to reduce returns and ensure comfortable wear

Prioritize washable materials

Choose costumes made from machine-washable fabrics or with detachable accessories to make cleanup after play or events easier

Mind safety features

Avoid long trailing hems for younger children, and prefer costumes without small detachable parts or exposed wiring; opt for battery-sealed compartments for any light-up pieces

Consider lighting and electronics

Light-up or music-sync dresses add play value but check battery type, accessibility of the compartment, and whether lights can be turned off for quiet settings

Evaluate versatility and theme

Select designs that work for multiple occasions—dress-up play, Halloween, or parties—such as princess styles, mermaid themes, or tropical tutus with neutral colorways