The actor, 27, made a stylish statement as she posed on the red carpet at the awards show at the Royal Festival Hall in London this evening.
She wore her blonde locks up in a daring, punk-esque up-do, featuring a micro-fringe, that framed her delicate features.
Her citrus-hued gown, which came complete with taffeta detailing and a fishtail train, was designed by Harris Reed.
Earlier this week, Pugh – whose film The Wonder is nominated for an award – walked in the British-American brand's show at London Fashion Week.
Pugh finished off her BAFTA look with glowy make-up and simple silver jewellery, including her trademark septum piercing.
The actor's slightly sheer look is reminiscent of the controversial fuschia pink Valentino dress she wore last year.
She was forced to defend the gown, which showed her nipples, in a social media post in which she pointed out that she was being body-shamed.
In a post on Instagram, she wrote: "What’s more concerning is…. Why are you so scared of breasts? Small? Large? Left? Right? Only one? Maybe none?" she added. "What. Is. So. Terrifying."
She touched upon the debate once more last month in an interview with Vogue in which she also insisted she would never lose weight for a role.
Read more: Florence Pugh's best looks, as she turns 27
Pugh has made a name for herself in recent years as one of the most stylish and adventurous stars on the red carpet.
Last year, following her much-discussed Valentino look, she also wore several more of the Italian fashion house's sheer designs – including at the Venice Film Festival.
Watch: British talent's best hopes at this year's Bafta film awards