A temperance bar, also known as an alcohol-free bar, sober bar, or dry bar, is a type of bar that does not serve alcoholic beverages. An alcohol-free bar can be a business establishment or located in a non-business environment or event, such as at a wedding. Alcohol-free bars typically serve non-alcoholic beverages, such as non-alcoholic cocktails known as mocktails, alcohol-free beer or low-alcohol beer, alcohol-free wine, juice, soft drinks and water. Popular temperance drinks include cream soda, dandelion and burdock, sarsaparilla, and Vimto, among others. Various foods may also be served.

In the late 19th and early 20th centuries, a number of temperance bars were established in conjunction with various temperance organisations. Originally, these advocated a moderate approach to life, especially concerning the consumption of alcohol. Later they moved toward abstinence from alcohol. Temperance bars with full temperance licenses (allowing them to serve on Sundays despite English trading laws) were once common in many high streets and shopping areas in the North of England. The temperance movement had a massive following, fueled mainly by nonconformist Christian denominations, such as Methodists.

Temperance bars were the first outlet for the drinks Coca-Cola and Vimto in the early 20th century. They were also sometimes called "temperance taverns".^{[citation needed]}

In the past, the bars quite often asked their patrons to sign a pledge of temperance, meaning that they would abstain from intoxicating liquors; today's wave of alcohol-free bars are frequented by both teetotalers and drinkers who wish to have fun in a drink-free environment. The recent popularity of alcohol-free bars is fueled by the declining usage of alcohol amongst the millennial generation, as well as the increased availability of information regarding the negative effects of alcohol on health.

In the 19th century coffee palaces were established as alcohol-free hotels in Australia.

In 2015 the first alcohol-free bar in New Zealand, located in Auckland and named Tap Bar, went out of business five weeks after opening due to a lack of consumer interest, in which few patrons showed up.

Some cities in the United Kingdom have alcohol-free bars and public houses. The popularity of alcohol-free bars has increased in the United Kingdom, and they are "often funded by anti-alcoholism charities."

Mr Fitzpatrick's in Rawtenstall is one of the first and original temperance bars surviving from the late 1800s, when it was established. The Fitzpatricks came to Lancashire from Ireland in the 1880s. A family of many herbalists, they built a family-run chain of shops throughout Lancashire. These shops dealt in their non-alcoholic drinks, sold herbal remedies, and cordial bottles. At their peak, the Fitzpatrick family owned 24 shops, all brewing drinks to the original recipes from Ireland. As new drinks came from America, the temperance bars slowly waned. Fitzpatrick's, supported by loyal customers, survived. The Rawtenstall branch of Fitzpatrick's was run from 1891 until 1980 by family members. It is now run by new owners, with the objective of returning Fitzpatrick's Cordials to the market. Following a brief closure in early 2016, Fitzpatrick's reopened for business on 25 March 2016.