Sinn Féin candidate Cllr Thomas Gould has said a new hospital for the Cork City region "must be situated on the northside."
Hospital overcrowding continues to be a major problem in Cork.
Almost 1,700 patients were left waiting on trolleys last month, according to figures from the Irish Nurses and Midwives Organisation (INMO).
More than 1,100 were left on trolleys in Cork University Hospital while a further 431 awaited beds in the Mercy along with more than 142 in Bantry General.
Two new hospitals for Cork have been earmarked in the Ireland 2040 plan, but a site has yet to be identified.
Mr Gould said Glanmire, which is now part of the city, is the ideal choice for a new hospital.
"CUH was one of the worst-hit hospitals in the state for overcrowding in January.
"This was the second-worst month for overcrowding on record. It is clear that we have huge capacity issues in Cork," he said.
"We need to build capacity. We need more beds.
"The project Ireland 2040 plan outlines the need for two new hospitals in the Cork area.
"I have always been vocal on the need for a hospital on this side of the city.
"This would cater for the health needs of an increasing population and the requirement for 24/7 emergency response.
"I believe one site that should be considered is the grounds of St Stephen's Hospital in Glanmire. Ever since the closure of the North Infirmary, the northside has been neglected. This must change."