Omaha is a village in Gallatin County, Illinois, United States.

[3] Omaha was established in 1871 as a stop along the Springfield and Illinois South Eastern Railway.

A baggage master working for the railroad, Henry Pearce, named the settlement for Omaha, Nebraska, where he had previously worked as a baggage master.

[5] Illinois Route 1 passes through the village, leading north 7 miles (11 km) to Norris City and south 32 miles (51 km) to Cave-in-Rock on the Ohio River.

Shawneetown, the Gallatin County seat, is 16 miles (26 km) to the southeast via Routes 1 and 13.