Second row: Taisho Roman Hall, former Sasayama Town Hall Third row left: Mount Mitake in Taki mountain range, right: Dekansho Bon Odori in August Tamba-Sasayama (丹波篠山市, Tanba-Sasayama-shi), formerly known as Sasayama (篠山市, Sasayama-shi), is a city in the central eastern part of Hyōgo Prefecture, Japan.

[1] The total area of the city is 493.21 square kilometres (190.43 sq mi) Tamba-Sasayama is located in an inland basin surrounded by mountains on all sides in the eastern part of the prefecture.

On November 18, 2018, the city held a successful referendum on changing its name from Sasayama to Tamba-Sasayama in reference to the historical Tanba Province, which still has some influence on local branding and politics.

Tamba-Sasayama is well known in the Kansai region for its agriculture and food products, specifically kuromame or kuro daizu (black soybeans), mountain yam, Japanese chestnuts, azuki beans, matsutake, beef, wild boar and venison.

JR West – Fukuchiyama Line The Dekansho Festival, famous for "Bon" style dancing, is held annually, every August 15 through 16 since 1952.