The Ohio Department of Job and Family Services (ODJFS) is the administrative department of the Ohio state government responsible for supervising the state's public assistance, workforce development, unemployment compensation, child and adult protective services, adoption, child care, and child support programs. Prior to July 2013, ODJFS was also the state agency responsible for the administration of Ohio's Medicaid program. In July 2013, a new state agency was created, the Ohio Department of Medicaid (ODM), Ohio’s first Executive-level Medicaid agency. ODJFS employs about 2,300 full time employees and has an annual budget of $3.3 billion.

The government of the U.S. state of Ohio consists of the executive, judicial, and legislative branches. Its basic structure is set forth in the Constitution and law of Ohio.