Vosko earned her Bachelor of Arts in political science from Trent University before attending Simon Fraser University. She published her thesis under the title "Shrink, cut...dye? : NAFTA and women's work in the Canadian clothing industry" in 1994 and earned her Master of Arts in gender studies. From there, Vosko earned her PhD at York University. Her dissertation from York University was titled "No jobs, lots of work: the gendered rise of the temporary employment relationship in Canada, 1897-1997."
