Police are appealing for public assistance to help locate missing 2-year-old girl Georgia Collins and her 37-year-old mother Jade Dunn.
They were last seen during the early hours of the morning in Hampton Park on 10 April.
Georgia is described as having blonde straight shoulder-length hair and blue eyes.
Jade is described as Caucasian in appearance, 155cm tall, slim build with blue eyes and blonde shoulder-length hair.
Police and family have concerns for their welfare and have released images of Georgia and her mother in the hope someone recognises them and can provide information regarding their current whereabouts.
It is believed they may frequent the Melbourne CBD, Hampton Park and Lynbrook areas.
Anyone with information is asked to contact Narre Warren Police Station on 9566 9566.