The coat of arms was designed by the Royal College of Arms in the United Kingdom to symbolise the new council, following the amalgamation of Dubbo and Wellington councils.

Dubbo Regional councillor Dayne Gumley said the cost to design the new symbol was funded from the NSW government's merger fund.

Symbolism from across the region, as well as both Dubbo and Wellington's former coat of arms, were used in the design.

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The lion represents the Duke of Wellington, while the kangaroo was used because they're common to the local government area. The ironbark tree symbolises strength.

The sheep and bulls are reflective of our agriculture.

Important people are also incorporated into the design.

Jean-Emile Serisier, who built the first store in Dubbo, is represented by the cherries at the bottom of the design. Cerisier is French for cherry tree. The apples are for Robert Dulhunty, who first settled the district, because he was famous for his apple pie.

The U symbols at the bottom represent a Wiradjuri gathering. The sun on the kangaroo's neck is also a Wiradjuri symbol.

The Macquarie River is also featured, splitting into the Bell and Talbragar.

Dubbo Regional mayor Ben Shields said the coat of arms would be used for everything from freedom of the city proclamations to awards that are sent out.

"We have a corporate logo that was done in-house but a coat of arms can only be done by the Royal College of Arms in London," he said.

"I understand it's an 800-year-old institution and they set what our arms are going to be. It's quite an extraordinary process."

Cr Shields said he liked keeping with such an old tradition.