Colebee is a suburb of Sydney, located in the state of New South Wales, Australia. It is situated 47 kilometres west of Sydney's central business district, within the local government area of the City of Blacktown, and is part of the Western Sydney region.  

Surrounding suburbs include 

• Quakers Hill 

• Marsden Park 

• Schofields 

• Dean Park 

• Woodcroft 

• Glendenning 

• Hassall Grove 

• Riverstone 

• Rouse Hill 

Colebee was named after C. Colebee, who is believed to have been the first Indigenous Australian granted land in the Blacktown area, at Plumpton Ridge. He was the son of Yarramundi.