Sukiya (すき家) is the largest chain of gyudon(beef bowl) restaurant. Sukiya has 1964 restaurants throughout all 47 Japanese prefectures as of 2017, as well as 70 in China (about half of which are in Shanghai) as of 2014; six in Taipei, Taiwan; 17 in Brazil (14 in São Paulo, one in Mogi das Cruzes, one in Santo André, and one in São Bernardo do Campo); seven in Mexico (five in Mexico City, one in Toluca, and one in Queretaro); eight in Thailand and five in Malaysia. Sukiya's owner, Zensho Holdings, is listed on the and had sales of ¥511 billion in 2016.
Its slogan (printed in romaji outside the restaurant) is "save time and money". According to the publicity printed in English on the walls of the restaurant, it originated in Yokohama, Kanagawa. Unlike Yoshinoya, Sukiya did not stop serving gyudon during the ban on American beef imports, instead switching to beef imported from Australia.
In response to Yoshinoya's butadon (pork bowl, a substitute for gyudon, "beef bowl"), Sukiya began serving its own version, tondon.
On September 11, 2013, a Sukiya restaurant was opened in Mexico City, being the first to be opened in Mexico. The Zona Rosa restaurant offers 24/7 service.
On July 3, 2014, a Sukiya restaurant was soft opened in Taipei City, making it the first Sukiya in Taiwan. The restaurant only operates from 7 a.m. to 11 p.m. while soft opening and is planned to provide 24/7 service in late October.