| State: | AR |
| Type: | AR |
| Route: | 345 |
| Map Custom: | yes |
| Established: | May 23, 1973 |
| Length Mi: | 3.36 |
| Length Ref: | [1] |
| Direction A: | South |
| Terminus A: | in Cotter |
| Direction B: | North |
| Terminus B: | in Gassville |
| Counties: | Baxter |
| Previous Type: | AR |
| Previous Route: | 344 |
| Next Type: | AR |
| Next Route: | 346 |
Highway 345 (AR 345, Ark. 345, and Hwy. 345) is a north–south state highway in Baxter County, Arkansas. The route runs 3.36miles between U.S. Route 62 Business (US 62 Bus.) in Cotter and US 62/US 412 in Gassville.
AR 345 begins at the intersection of US 62 Bus., Combs Avenue, and Cotter Road in Cotter. It first heads south on Cotter Road crossing a railroad at-grade. It runs northeast through the southern part of Cotter paralleling the White River before zig-zagging its way north when it enters Gassville and terminates at US 62/US 412.
The segment was created on May 23, 1973 pursuant to Act 9 of 1973 by the Arkansas General Assembly.[2] The act directed county judges and legislators to designate up to 12miles of county roads as state highways in each county.[3]