The Women's International Motorcycle Association (WIMA) is a motorcycle club established by Louise Scherbyn in 1950 in the United States. Branches began in many countries, including Great Britain (Theresa Wallach was the first international vice president) and Australia where the branch was started by Hazel Mayes. It was the first organization to recognize all women in the sport, and the first ever stand-alone women-led motorcycle association. Currently spanning 39 countries, it is purportedly the largest motorcycle association for women in the world. The group is known for organising annual "Pink Ribbon Rides" to raise awareness for breast cancer.
The national divisions in October 2020: