No Logo: Taking Aim at the Brand Bullies is a book by the Canadian author Naomi Klein. First published by Knopf Canada and Picador in December 1999, shortly after the 1999 Seattle WTO protests had generated media attention around such issues, it became one of the most influential books about the alter-globalization movement and an international bestseller.

Naomi Klein is a Canadian author, social activist, and filmmaker known for her political analyses; support of ecofeminism, organized labour, criticism of corporate globalization, fascism and capitalism. As of 2021, she is an associate professor, and professor of climate justice at the University of British Columbia, co-directing a Centre for Climate Justice.