The female heroes of My Hero Academia are badass. The female heroes are incredibly strong and dependable in their own right, often saving the day with their own unique strengths and powers.
A hero's power and popularity can be gauged by the current rankings in the Pro Hero roster, which is mostly reliable, with a few flaws such as a degree of randomization. For heroes with a low number or no ranking at all, their power level is determined by how well they fare against various opponents, using minor rankings from the Ultra Analysis Book. But regardless of the measurement, all of these ladies are fierce and ferocious.
Uwabami
This Pro Hero has no hero rank number or alter-ego name, but gladly helps the other heroes combat villains or enemies when they arise. Uwabami prefers her celebrity modeling career over the life of a hero, but always rises to the occasion when she is needed. The snakes on her head have very acute senses, enabling Uwabami to locate criminals or civilians in need of aid.
Uwabami often assists rescue operations, and at one point used her Quirk to locate people who were trapped under fallen rubble after a particularly explosive fight between All Might and All For One. While her power is on the low side, her intelligence and technique more than make up for her lack of physical strength.
Himiko Toga
Toga is a big threat throughout the show, as she consistently faces off against the U.A. students, various teachers, and Pro Heroes. Toga's Quirk is Transform, which enables her to change into anyone as long as she has ingested some of their blood. Toga has been shown in the anime to replicate looks, but in the manga, she can also replicate certain people's Quirks, making her much more powerful than fans first presumed.
Toga is definitely a threat to anyone she fights, and although she is a villain and has no hero ranking, she is an important member of the League of Villains, often becoming instrumental in their plans to take down the heroes. She is one of the most beloved villains in the series, and her Quirk makes her sneaky and cunning as well as physically strong.
Nejire Hado
A third-year at U.A., Nejire is one of the Big 3, the strongest students in the school. She is fierce in battle despite her usually cheerful persona, and her insanely strong Quirk, Wave Motion, puts her in a position to surpass the strength of a lot of Pro Heroes. She consistently teams up with the Dragon Hero Ryukyu to take on large opponents despite her height disadvantage.
Wave Motion allows Nejire to release her energy in spirals from her hands and feet. Although these spirals are not very fast, the shockwaves they produce are extremely powerful and allow her to fly as well as blast enemies from long and short ranges. Her power ranks an A according to the Ultra Analysis Book, one of the highest in the MHA cast.
Emi Fukukado / Ms. Joke
Like fellow teacher Midnight, Ms. Joke is a Pro Hero but has no number ranking. She teaches second-year Class 2 at Ketsubusu Academy. Her Quirk Outburst allows her to incapacitate her enemy with uncontrollable laughter, much like Midnight's Somnambulist immobilizes opponents with sleep-inducing aromas.
Despite their similar powers, Ms. Joke is more powerful than Midnight since she is more focused on melee combat, whereas Midnight acts more as a support agent. Midnight also has a ranking of D for her power, making her a little less powerful than Ms. Joke.
Wild Wild Pussycats
The Wild, Wild Pussycats hero team includes female heroes Mandalay, Pixie-Bob, and Ragdoll, alongside their male partner Tiger. Together they make up number 411 on the Pro Hero rankings. Ragdoll is currently Quirkless in the anime due to All For One, but beforehand had the Quirk Search, which could monitor up to 100 people at once.
Pixie-Bob has Earth Flow, which allows her to manipulate the earth around her, and Mandalay has Telepath, allowing her to communicate with people over long distances. This hero team specializes in mountain rescue, having saved many lives on the dangerous terrain around them, and helped train the U.A. students during a Quirk Training Camp.
Yu Takeyama / Mt. Lady
Mt. Lady is currently the number 23 Pro Hero. It is worth noting that not all Pro Heroes have been named in the anime or manga, so there may be other unnamed female heroes above her in the rankings.
Mt. Lady is vain and loves being a celebrity, but she will never risk harming a civilian and always steps up when hero work must be done. Her Gigantification Quirk enables her to grow to over 200 meters tall, towering her over most buildings. Her flying kick is devastating, but her durability is even more impressive as she willingly puts herself in harm's way to protect civilians.
Eri
Eri was used as a human guinea pig to develop a Quirk-erasing drug for the villains, due to her Quirk Rewind, which reverses a person's body back to a previous state. This power was used to erase one of the Big 3's Quirks. Overhaul's experimentation on Eri is a genuinely shocking My Hero Academia moment, but she has come out of her shell and tried to be a good hero since escaping her horrible confinement.
As a child, Eri is not physically strong, and may not reach the heights of the top 10 Pro Heroes, but her Quirk is extremely powerful and easily manipulated if put in the wrong hands.
Ryuko Tatsuma / Ryukyu
The current number 10 hero uses her Dragon Quirk to transform into a terrifying dragon that can fly and rip apart entire buildings. While Ryukyu is passionate about saving people, she has a softer side and has stated that she would have refused her number 10 ranking if possible, due to her inability to save one person's life.
Her enhanced strength and durability make Ryukyu a formidable opponent, especially as her power and intelligence both rank A according to the Ultra Analysis Book.
Rumi Usagiyama / Mirko
Mirko currently ranks fifth in the Pro Hero roster after Endeavor, Hawks, Best Jeanist, and Edgeshot. Mirko faces down much stronger opponents with determination, refusing to back away when people are in danger. Her Rabbit Quirk enables her to use enhanced hearing to locate criminals and civilians, use her enhanced physical abilities to overpower enemies, and her high pain tolerance that enables her to keep fighting even after she has been gravely injured.
Mirko's power, speed, and 'bounce power' all rank A in the Ultra Analysis Book, and in the anime, she has shown that she is capable of taking down Nomus and powerful enemies with ease.
Nana Shimura
As the seventh user of One For All, Nana is one of the most powerful characters in the MHA universe. Nana is kind and dedicated, with a strong sense of justice. She taught her pupil All Might to always smile while saving people, to reassure their hearts in the face of danger.
Nana's Quirk Float allows her to hover in mid-air, in addition to her inherited One For All Quirk, which allows Nana to elevate her physical abilities to superhuman levels. All Might and Deku have enhanced the Quirk's abilities, but Nana inspires them both to take the ability to new heights.