Women's spaces are areas or organisations which are reserved for the use of women. Until around 2015 men were rarely permitted access to women's spaces. Since the rise of the trans movement around that time trans women have been entering women's spaces with support from the government. As a result of the loss of men's spaces starting the 20th century, many men are unwilling to do anything to stop the loss of women's spaces in the 21st century.
Examples of Women's Spaces
There is a Lesbian-only cemetery in Germany.
Domestic Violence Shelters
Throughout the world, domestic violence shelters are nearly universally available only to women.
Women-only gyms are common throughout the west and widely known about.
There are a few hotels around the world that advertise as men-only although it is unlikely that this is enforced in western nations.
A women-only market has recently opened in London.
In 2018 the Statement festival was held in Sweden. This event was only open to non-men. The festival was found to be in violation of the country's discrimination laws. It appears that the despite the ruling the festival went ahead as an environment admitting only non-men.
Parking Spaces & Roads
Australia, China, Kuwait, Malaysia, Indonesia, Austria, Italy, and South Korea now have women-only parking spaces in some areas.   This practice is even more widespread in Germany. The town of Triberg in Germany created male-only and female-only parking spaces, allocating the more difficult parking spaces to men. It is unclear if the town had to backtrack under feminist pressure.
As of February 2023 Seoul, South Korea is removing women-only parking spaces and converting them to gender neutral family parking spaces. They will be available to mother and fathers while they are with infants and small children. Women's groups in South Korea have opposed this.
There are women-only police stations in Brazil, Argentina, Guatemala, Peru and India. Australian academics have been studying the Argentinian model with a view to the introduction of women-only police stations in Australia.
Some public spaces in Australia have women-only seating. The image to the right shows such seating in Melbourne.
Jessica Valenti, a well known feminist blogger, has explicitly proposed gender segregation on public transport. Some countries are already doing this. There are women-only bus seats in Switzerland and India. There are women-only train carriages in Malaysia, Germany and other countries. There has even been a proposal for women-only seating sections on aircraft.
Men are not permitted to travel on trains during certain hours in Chennai, India.
Women only restaurants are becoming common.
The city of Hamilton New Zealand seriously considered banning men from a public swimming pool during certain times, creating women-only swimming sessions. 
McIver's Ladies Baths is an ocean pool owned by a local city council in Australia. The Baths are open to women and children only.
Taxis & Ride Sharing
New York City has a women-only taxi service. Although they have apparently had trouble finding sufficient female drivers. A similar service has been proposed for Melbourne, Australia, and is in use elsewhere.
US universities have female only education sessions.
- Women only trains and transport. How they work around the world.
- Chariot for Women
- Sandman on Women-only restaurants
- Police in Bangalore, India to fine men who sit in seating reserved for women
- Elle Magazine advocating for women-only spaces