Karen Matthews said the wheelchair went missing from outside her front door on Buffet Ramble overnight between May 11 and 12.
Ms Matthews said it had an apple-green frame, hospital identification and her name on it, so initially she had hoped it would be returned.
"It's very noticeable, with a black cushion and seat," she said.
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READ NOW"It's a specialised wheelchair."
Ms Matthews said had been given the wheelchair about five years ago and had been struggling to get about using her walking frame since it went missing.
"I�m not very strong and my legs don't function properly," she said.
"I�m able to walk in the house, but when I leave the house I need the wheelchair for support."
Anyone with information can call 9562 0876.