Mermaid Dresses

Mermaid Dresses: Your Guide

Mermaid dresses are known for accentuating your curves and emphasizing an hourglass figure. This is a more formal silhouette, perfect for a variety of events that come with a formal or semi-formal dress code. From dramatic mermaid silhouettes to more subtle takes on the mermaid look, there are so many options—so let’s dive in!

What Is a Mermaid Dress?

A mermaid dress is a gown that’s fitted through the bodice and the thighs but flares out approximately around the knees. The flare, paired with the tightness of the rest of the dress, gives a dramatic silhouette that resembles a mermaid’s body and tail. Because of their structure, maxi mermaid dresses tend to be the most common, but a short version of this silhouette isn't unheard of. 

Mermaid dresses are the perfect marriage between a dramatic ball gown and a fitted gown, since they borrow design elements from both silhouettes. So, if you have an event coming up and can’t decide between something fitted and something more dramatic, a mermaid dress has the best of both worlds.

Depending on the vibe you’re going for, mermaid dresses can have a very dramatic flare at the bottom or something a bit more subtle and fitted.

Places to Wear a Mermaid Dress

Mermaid dresses are perfect for most events in which you’d wear a formal gown. Here are some of our favorite places to wear mermaid dresses.

Mermaid Formal Event Dresses

Mermaid gowns are perfect for black or white tie events like gallery openings, dinner parties, galas, or other events that have a formal dress code. You can even wear a mermaid dress just out to a nice dinner for some extra fun!

Depending on the event, you may want your gown to have a more subtle flare at the bottom. This is especially true if you’re not the host of the event or someone being honored – you don’t want your gown to steal someone else’s spotlight. Along with this dark colors, like a black mermaid dress, tend to be most appropriate. 

Mermaid Prom Dresses

Prom is another fabulous place to don a mermaid gown, especially if you’re looking to make a dramatic entrance in your dream prom outfit. Mermaid dresses exude sophistication, and since prom is typically the last hurrah for high school, this silhouette is perfect for welcoming a new chapter of maturity.

Be careful when choosing a mermaid dress for a dance, though, as this silhouette can be more difficult to move in than an A-line. Going with a high-slit mermaid dress can open up the bottom a bit for easier dancing. Make sure your shoes are up to the task as well!

Mermaid Wedding Dresses

When you’re thinking about your wedding dress, you’re most likely trying to choose a silhouette that perfectly suits your personality and maybe even shows your figure. This is where mermaid wedding dresses come in—they make a dazzling statement and can be as detailed or subtly elegant as you like.

The mermaid silhouette is especially great if you’re having trouble deciding between a wedding dress fitted to your body and a princess-like ball gown.

Mermaid Bridesmaid Dresses

If you love the mermaid silhouette and want to incorporate it into your wedding, they’ll look perfect on your wedding party. Mermaid bridesmaid dresses can be a lovely complement to an elegant, fitted wedding gown, and it also complements a more dramatic ball gown look because of the elements that nod to each silhouette.

For a more uniform look, you can wear a mermaid wedding dress as a bride and have your bridesmaids also wear mermaid gowns. Play with color contrast or other details to make your wedding party pop!

Mermaid Wedding Guest Dresses

A subtle mermaid silhouette is a lovely look to wear as a wedding guest. The formality of a mermaid dress makes it a solid choice for an evening wedding, though a printed mermaid dress or one in a pastel shade can be perfect for an afternoon ceremony.

There are a few more caveats when it comes to wearing a mermaid dress to a wedding that isn’t yours, but it mostly comes down to being mindful and checking with the organizers. Make sure not to go too formal and dramatic for a wedding guest appearance, and also keep in mind any color restrictions, i.e., avoiding white if you’re directed to do so as a guest.

Mermaid Dress 2026 Trends

Thinking about trying a mermaid dress for yourself, but you’re stuck on where to start? Here are some of the top trends for 2026 to give you a bit of inspiration!

High-Slit Mermaid Dresses

High-slit mermaid dresses combine the traditional fit-and-flare mermaid silhouette with a high slit, revealing some leg. A high slit can be an excellent compromise if you love the mermaid silhouette but want to feature your legs.

A high slit can make a mermaid dress easier to dance in, which makes this a great trend for prom or other events that feature dancing. Plus, you get to show off your shoes!

Backless Mermaid Dresses

It’s common for a mermaid dress to show less skin because of how fitted the silhouette is. If you’re hoping to add a bit of spice to your formal event, the backless mermaid dress is here for you. This trend is also great for balancing the formality of the silhouette by adding a bit of playfulness.

Backless mermaid dresses can be a fantastic compromise for events where you don’t want a lot of skin showing in photographs, like weddings, but you still want to exude flirtiness. Dresses may be totally backless or have lace-up corset details for an ultra-feminine twist.

Floral Mermaid Dresses

Like the backless trend, a printed mermaid gown adds a bit of playfulness to the formal silhouette. Floral mermaid dresses, in particular, nod to the blooms of spring and summer, making this trend a gorgeous choice for prom or summer weddings.

For a more subtle take on the floral trend, you can go with floral lace or floral details. You can also choose a small print or one that has a similar background to the print on top of it.

Ruffled Mermaid Dresses

Ruffles add a pop of movement, drama, and fun to a mermaid dress. Horizontal ruffles along the flare of the mermaid skirt add volume, which plays up the curves of the whole dress. Ruffles that run vertically down the dress add an extra layer of movement to the whole gown, making this a great choice for dances.

There’s also a variety of sizes that your ruffles can be, which will have different effects on your gown’s vibe for the event. Large ruffles can be both voluminous and full of breezy movement, whereas smaller ruffles can be packed together to get volume or spread out to create movement.

Accessorizing Your Mermaid Dress

Generally, you’ll want to make sure your shoes, jewelry, and other accessories don’t compete with your mermaid dress. This is true for all formal gowns, but especially one with a bit more going on in the silhouette.

For the most part, you’ll want to keep your jewelry on the dainty side – there can definitely be exceptions to this rule, though! If your dress has more of a minimalist vibe, or the mermaid flare isn’t super dramatic, you can go a bit bolder with your jewelry without it competing with your gown.

As for shoes, you can’t go wrong with simple pumps in a color close to your skin tone or metallic sandals that aren’t overly flashy. If you're getting alterations, make sure to take your shoes with you to the tailor—this will keep you from getting a dress that’s too long or short.

Making a Splash in Your Dream Mermaid Dress

The mermaid silhouette is a classic for a reason. From elegant simplicity to gowns with a touch of drama and detail, there’s a mermaid dress for everyone and every occasion!