The suburb border stretches from the Fitzroy Gardens in the north, to the University of Tasmania apartments in the south, and up the Waterworks Valley to the west.

Dynnyrne is Tasmania's second most affluent suburb according to documents released by the Australian Taxation Office.

Cooloola, Illawarra, Karinga, Telopea, Rosslyn and Pambula were all rejected on the basis that they exactly or closely duplicated names already used in Australia.

Following further consultation with the Post Office, Dynnyrne was chosen, recalling the first house built in the area about one hundred years earlier.

One of the Hobart City Council aldermen warned that people would have difficulty spelling Dynnyrne but the new name was adopted.