Yoshii (芳井町 Yoshii-chō) was a town located in Shitsuki District, Okayama, Japan.
On March 1, 2005 Yoshii, along with the town of Bisei, from Oda District, was merged into the city of Ibara.
As of 2003, the town had an estimated population of 5,736 and a density of 71.07 persons per km². The total area was 80.71 km².