United States congressional delegations from Ohio

These are tables of congressional delegations from Ohio to the United States House of Representatives and the United States Senate.

The current dean of the Ohio delegation is Representative Marcy Kaptur (OH-9), having served in the House since 1983.

List of members of the United States House delegation from Ohio, their terms in office, district boundaries, and the district political ratings according to the CPVI.

The delegation has a total of 15 members, with 10 Republicans and 5 Democrats.

After statehood, Ohio had one representative, elected statewide at-large.