The 21-year-old beat off competition from her sister Bella and best friend Kendall Jenner at the ceremony in London.
To celebrate, Gigi Hadid took part in a mannequin challenge on stage at the Royal Albert Hall with the audience getting involved as well.
Other winners on the night included Jayden Smith and Willow Smith as new fashion insiders.
Accepting her international model of the year award, Gigi Hadid said: “I just want to say that I know that I’m in the generation of social media, and I’m so blessed for that.
“But the fashion industry is my family, and you guys are the ones that I’m here for.”
The model continued: “To everyone who has been so genuine and looked beyond what the rest of the world looked for, that has meant so much to me.”
Gigi Hadid is the daughter of LA real estate developer Mohamed Hadid and former model Yolanda Hadid, who appears in reality TV show The Real Housewives of Beverly Hills.
The model is dating former One Direction singer Zayn Malik and her sister Bella is also a top model.
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