Plus Size Formal Dresses Australia – Prom & Evening Gowns

At One Honey Boutique, our plus size formal dresses Australia collection brings together designer prom dresses, school formal gowns and eveningwear across a wide range of silhouettes, colours and finishes.

Explore flattering A-line, fitted, mermaid, corset and ball gown styles, with options featuring structured bodices, adjustable details, stretch fabrics, elegant draping and statement embellishments.

Whether you're shopping for a Year 10 or Year 12 formal, prom, ball, gala, black-tie event or special occasion, discover gowns designed to create confidence, comfort and impact.

For our complete formalwear edit, explore formal dresses Australia, or browse our dedicated prom dresses Australia and evening dresses Australia collections.

Shopping for a specific event look? Explore statement styles including corset formal dresses, A-line formal dresses and sequin dresses.

Our product pages include individual sizing information, and available sizes vary by designer and style. Always check the specific size guide and product details before ordering.

Choosing a gown for a school formal? Australia's Largest Dress Register helps protect the exclusivity of eligible registered One Honey gowns for participating school formals and events.

Complete your look with our clutch bags and formal accessories.

Proudly Australian owned since 2011 with over 1,000+ 5-star reviews, One Honey Boutique helps customers across Australia find unforgettable formalwear for milestone occasions.

Need help choosing your size, understanding fit or planning around your event date? Visit our Help Centre for sizing, ordering and delivery support.

Shop with flexible payment options including AfterPay & Zip.

Visit our Gold Coast showroom for personalised formal dress fittings by appointment and check current style availability before travelling.

Discover plus size formal dresses in Australia with One Honey Boutique — designer gowns made for standout moments.