Jackass Falls - Seaham
Jack's Creek - Liverpool Plains
Jacob and Joseph - station of John Eales situated at Liverpool Plains
Jarvistone - near Nelson's Plains - Dangar's map 
Jenny's Creek - Co. Parry - a small auriferous tributary of the Peel River joining it at Bowling Alley Point Diggings. 
Jerry's Plains - Co. of Hunter on the South bank of the Hunter River. Old name Cumnaroy. The plain is surrounded by high ridges known as the Bulga Mountains.
Jervis Farm - Farm belonging to Alexander Warren, Williams River
Jewells (near Belmont) Should be Jules, as it was named after Jules Windeyer an old resident of Newcastle who used to go shooting there
Jewhurst's Farm - 900 acres originally granted to George Townshend, Paterson
Jew's Lagoon - on Namoi River
Jigadee Creek - early name for Sandy Creek a branch of Dora Creek
Jilliby-Jilliby Creek - Co. Northumberland - a tributary of the Wyong Creek fed by the Nellering Creek.
Johnson's Hill - Paterson
Johnys Point - near Silverwater, Lake Macquarie.
Jonestown - Cardiff. Part of John Jones 1862 land grant
Jooloogan Estate - at Dartbrook
Judge Dowling - a range of mountains situated in the Co. of Northumberland, a part of the Carmarthen Mountains. Formerly named the Devil's Backbone. 65 miles from Sydney. From this spot may be seen ' Yengo,' a remarkable flat-topped mountain to N.W., Well's Gazeteer
Jump-up - Later known as Belford
Jump-up Creek - Patrick Plains. A small souther tributary of the Hunter River flowing through the township of Belford
Jump-up Hill - Mount Royal Ranges
Juri - Co. of Parry. A township on the northern railway to the S of Tamworth.