| Place name | Origin & meaning | Source |
| Ulick Street (Merewether) | After Dr Richard Ulick Bourke, a grandson of E.C. Merewether, a medical practitioner in Hamilton. | C.E.Smith Dec 1966. |
| Umina | Aboriginal - camping place | NMH 23.04.1955 |
| Underbank | Takes its name from the nearby property "Underbank" | NH 03.11.1981. |
| Union Street (Adamstown) | Portion of Brunker Road from Glebe Road in a southerly direction. | NCC Planning Department. |
| Upfold Street (Hamilton) | Portion of Hebburn Street between Denison and Everton Streets. | NCC Planning Department. |
| Upper Reserve | Earlier name for area known as King Edward Park. Renamed 29.08.1910 three months after the King died . | NCC Archives AB797. Improvements & G.P. Comm 1906-1914 |
| Upper Ridge Street (Merewether) | Portion of Scenic Drive between LLoyd to Hillcrest Streets. | NCC Planning Department. |
| Upper Williams | Early name for Dungog area. | Bennett,C: History of Dungog,Chichester & Wangat. |