Frin's Taverns was a Ferengi bar chain on Ferenginar that were owned by Frin. One of the bars was Frin's Fabulous Fortune.
In 2366, the time travelling Sonya Gomez, Domenica Corsi, Carol Abramowitz and Mor glasch Tev visited one of Frin's Taverns on the trail of Lant, finding it to be bright and cheery. (SCE eBook: Buying Time)
In 2371, there were thirty bars in the chain and thirty-one a few years later. (DS9 episode: "Civil Defense", ST reference: Federation Travel Guide)