The Ultimate March 2026 Convention Cosplay Guide!

The waiting is finally over! March is here, and with it comes the official start of the spring convention season. Whether you are perfecting a stitch, practicing your character's catchphrase, or packing your convention bag, now is the time to get ready.

From the massive halls of MEGACON Orlando to the sunny photo ops at WonderCon, we have curated the ultimate guide to help you navigate the month. We will tell you where to go, what series to watch, and how to save big on your cosplay haul. Let's get into it!

Part 1: The Events – Your March 2026 Convention Calendar

The United States is packed with incredible conventions this month. Whether you are into massive corporate spectacles or intimate community gatherings, here is where you will find the biggest cosplay gatherings:

Part 2: Select Your Cosplay Theme

Whether you're a longtime fan or looking for your next obsession, here are the anime and western series dominating conversations this March—perfect inspiration for your cosplay project.

Jujutsu Kaisen Season 3 Shop JJK Costumes

The highly anticipated continuation of the megahit shonen anime. Based on Gege Akutami's manga, the story follows Yuji Itadori, a high schooler who swallows a cursed object—the finger of the most powerful Curse in history—and becomes entangled in the dangerous world of Sorcerers and Curses. Season 3 adapts the fan-favorite Culling Game arc, a brutal battle royale where sorcerers from past and present collide.

Cosmic Princess Kaguya Shop Kaguya Costumes

 A reimagining of the folktale The Tale of the Bamboo Cutter, the film follows high school student Iroha Sakayori and Kaguya, a girl from the Moon, as they compete in a streamer tournament within the virtual world of Tsukuyomi.

Gachiakuta Shop Gachiakuta Costumes

A gritty and action-packed dark fantasy manga (with an anime adaptation highly anticipated). The story takes place in a slum where a boy named Rudo is falsely accused of murder and exiled to the "Sphere," a terrifying wasteland where all of humanity's trash is dumped. There, he must fight for survival against trash monsters while seeking revenge and a way back home, discovering he can wield the power of "trash" as a weapon.

 

Invincible Season 4 Shop Invincible Costumes

The hit adult animated superhero series returns on Amazon Prime Video. Based on the Image Comics series by Robert Kirkman, the show follows Mark Grayson, a seemingly normal teenager who inherits superpowers from his father, Omni-Man. Season 4 continues Mark's journey as he balances being a hero, a brother, and a protector.

Frieren: Beyond Journey's End (Season 2) Shop Frieren Costumes

A critically acclaimed fantasy that redefines the hero's journey. After the demon king is defeated, elf mage Frieren must come to terms with the fleeting lives of her former companions. The series explores time, memory, and legacy.

Witch Hat Atelier Shop Witch Hat Costumes

A beautifully drawn fantasy manga. Coco dreams of becoming a witch, and after meeting Qifrey she enters a world of wonder, magic through drawing, and ancient secrets.

Dispatch Shop Dispatch Costumes

A webtoon/manhwa adaptation blending office life with supernatural action. A secret organization "Dispatch" monitors superhuman threats in a world of dimensional gates.

Hazbin Hotel (Season 2) Shop Hazbin Hotel Costumes

The adult animated musical series returns. Charlie Morningstar's dream to rehabilitate sinners in Hell continues with catchy showtunes, dark humor, and heartfelt chaos.