Minnie Caldwell was one of the original characters of the long-running British soap opera, Coronation Street.

Minnie, played by Margot Bryant from 1960 to 1976, was a very timid woman who paled in comparison to her loud friend Martha Longhurst , and her louder friend Ena Sharples. Minnie was known to be very indecisive, which usually led Ena to label her as slow-witted, or usually just "daft".

From 1960 to 1962, Minnie lived with her bossy mother, Amy Carlton. When Amy died, Minnie moved from Jubilee Terrace to No. 5 Coronation Street, where she lived with her cat, Bobby. She considered moving in with, and eventually marrying, Albert Tatlock in 1974 but realized that she would be financially burdened by Albert, as Ena told her that she would receive just £1250 for a married couple while she already received £775 in pensions as a single occupant. She also found that Albert annoyed her considerably. To mutual relief, Minnie called off their engagement.

An old flame, Handel Gartside, came back to woo her after he had made much money in a business venture in Quebec. She flirted with him for a while but he was eventually driven off by crooked business with Billy Walker. Minnie's old lodger, Joe Donnelli, came back to the Street and held her at gunpoint, as he became very nervous about being prosecuted for the murder of Steve Tanner . Stan Ogden came up to Minnie's apartment, ready to fight with Joe as he had had a dalliance with his daughter Irma . Joe made Stan sing Christmas carols at gunpoint, and eventually Joe shot and killed himself.

In 1976, Handel Gartside returned and Minnie accepted his offer to live with him in Whaley Bridge. She left her friend Ena and was never seen on the programme again.