Long Blue Prom Dresses

You + long blue prom dresses = a match made in prom night heaven. Whether you’re channeling major mermaid energy or just want to make jaws drop, these dreamy blue gowns are here to help you steal the spotlight. From midnight navy to sky-high blue, your perfect shade is waiting to make your entrance unforgettable. Get ready to twirl, pose, and own every second—because when you show up in long blue prom dresses, the party doesn’t start until you walk in.

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$79.90

4.583334 star rating

A royal blue satin mermaid dress featuring a halter neckline, open cross-back, and high front slit.

Best Seller

$74.90

4.666667 star rating

A sophisticated navy blue mermaid dress featuring a tie-back design and high front slit.

$79.90

4.5 star rating

A stunning royal blue formal dress featuring a lace-up back and high side slit.

Sale

$19.97 $59.90 67% off

4.627027 star rating

A navy blue satin dress featuring a form-hugging silhouette, square neckline, and high front slit.

$109.90 - $149.90

4.585106 star rating

A light blue mermaid dress with sequin-scroll mesh, padded bust, and lace-up back for formal events.

$59.90

4.689655 star rating

A navy blue floral mesh mermaid dress featuring a lace-up back, ruched front, and high slit.

$154.90

4.947369 star rating

A light blue beaded sequin formal dress featuring a cowl neckline and high slit for elegance.

$69.90

5 star rating

A blue floral crepe mermaid dress with a sweetheart neckline and high front slit.

Best Seller

$69.90

4.833334 star rating

An elegant navy blue mermaid dress with an open back and ruched seams for formal occasions.

$76.90

4.8 star rating

A navy blue mermaid formal dress featuring a chiffon tie-back and floral velvet pattern.

$169.90

4 star rating

A light blue mesh mermaid dress featuring bead sequins, lace-up back, and high front slit.

Sale

$19.97 $79.90 75% off

3.4 star rating

A light blue mermaid formal dress with a ruched silhouette and adjustable spaghetti straps.

$79.90

3.333333 star rating

A navy blue strapless mermaid gown in smooth knit fabric with a ruched sweetheart bodice and open back.

$154.90

5 star rating

A navy blue glitter mesh formal dress with a corset bodice and ruffled A-line silhouette.

$109.90

4.726191 star rating

A chic navy blue mermaid dress with sequins, featuring a lace-up back and thigh-high slit.

$84.90 - $89.90

4.65625 star rating

A stunning navy blue satin dress with a cowl neck, lace-up back, and high front slit.

$59.90

4.769231 star rating

A light blue strapless column dress in slinky knit fabric with pleated seams and a high side slit.

$59.90

4.863637 star rating

A navy blue knit dress featuring a cowl neck, mermaid silhouette, lace-up back, and high front slit.

Sale

$14.97 $69.90 79% off

4.533333 star rating

A navy blue satin glitter mermaid dress with a strapless neckline and pleated bodice.

Sale

$77 $109.90 30% off

4.461538 star rating

A royal blue mermaid dress with sequin scrolls, adjustable straps, and a high front slit.

Best Seller

$99.90

4.692308 star rating

An elegant navy blue satin dress with a lace-up back and high slit for formal occasions.

$69.90

4.909091 star rating

A navy blue satin column gown featuring a pleated strapless neckline and a dramatic high side slit.

$59.90

4.9 star rating

A light blue strapless mermaid dress featuring glitter knit fabric, ruched sides, and a floor-length hem.

$69.90

4.25 star rating

An ethereal light blue mesh dress featuring off-the-shoulder ruffles and a high side slit.

Best Seller

$99.90

5 star rating

A navy blue mermaid gown adorned with floral sequins, featuring a lace-up back and high front slit.

$99.90

4.666667 star rating

A light blue mermaid dress with sequin embroidery, cutout back, and high front slit.

Best Seller

$109.90

4.833334 star rating

A light blue mesh dress featuring sequin floral details, strapless neckline, cutout back, and mermaid silhouette.

$119.90

5 star rating

A light blue mermaid gown featuring a rhinestone mesh corset, cowl neckline, and open back.

$129.90

5 star rating

A navy blue satin mermaid gown featuring a sequin-embellished sheer mesh corset and high front slit.

$89.90

3 star rating

A navy blue glitter A-line gown featuring an off-the-shoulder sweetheart neckline and high front wrap slit.

$119.90

4.666667 star rating

A royal blue sequin mermaid dress with a plunge V-neckline and adjustable spaghetti straps.

Best Seller

$69.90

4 star rating

A navy blue glitter knit mermaid gown featuring a strapless padded neckline and floor-length silhouette.

$59.90

3.666667 star rating

A navy blue knit formal dress featuring a draped cowl neckline, lace-up back, and high side slit.

Best Seller

$109.90

5 star rating

A navy blue sequin mermaid gown featuring a lace-up back, high front slit, and adjustable straps.

$169.90

4.666667 star rating

A light blue mesh mermaid gown adorned with floral sequin beading, pleated strapless neckline, and high slit.

$69.90

5 star rating

A light blue mesh mermaid gown featuring lace trim, a lace-up back, and a sculpting silhouette.

$139.90

4.5 star rating

A royal blue sequin dress featuring a mermaid silhouette and an alluring open strappy back.

$79.90

5 star rating

A navy blue glitter mermaid gown featuring a corset bodice, sweetheart neckline, and high front wrap slit.

$99.90

4.5 star rating

A blue floral chiffon A-line dress featuring cascading ruffles, a lace-up back, and a floor-length silhouette.

Best Seller

$154.90

4.5 star rating

A royal blue mermaid dress featuring beaded sequin mesh, a cowl neckline, and lace-up open back.

$119.90

4.5 star rating

A navy blue satin mermaid gown featuring sequin lace trim, corset bodice, and elegant lace-up back.

$69.90

5 star rating

A royal blue strapless maxi dress in shimmering lurex knit with a wired neckline and high side slit.

$64.90

5 star rating

A light blue strapless lace dress featuring a high side slit and asymmetric ruffled detailing.

$139.90

4.5 star rating

A royal blue satin mermaid gown featuring a gemstone-embellished corset bodice and high front slit.

$129.90

5 star rating

A navy blue mermaid dress featuring floral sequin embroidery, sheer mesh fabric, and a dramatic high slit.

$169.90

5 star rating

A royal blue mesh mermaid dress adorned with sequin beading, featuring a square neckline and adjustable straps.

$79.90

5 star rating

A light blue glitter mesh mermaid dress featuring a draped neckline, open back, and elegant ruching.

Sale

$14.97 $59.90 75% off

5 star rating

A navy blue velvet wrap dress with glitter, ruching, and a high-slit for formal occasions.

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Long Blue Prom Dresses