Thomas John Patrick McGuinness (born 2 December 1941) is a guitarist, singer and songwriter who played guitar and bass with rock band Manfred Mann, among others, before becoming a record and television producer.

[1] Following a stint in the short-lived Roosters with Eric Clapton, McGuinness joined the 1960s group Manfred Mann as a bassist, performing in a line-up with Paul Jones.

Explaining how he came into the group, McGuinness said, "They had a great bass guitarist, but he was into Charles Mingus and things like that, which the whole band was.

But he refused to play simple bass lines that would fit Bo Diddley numbers.

[3] When Mike Vickers and then Paul Jones left the band, McGuinness took over the guitarist role; Jack Bruce then played bass until replaced by Klaus Voormann.

McGuinness' National Steel guitar became an important part of the group's sound, and featured on hits such as "Pretty Flamingo".

2 on the UK Singles Chart at the end of 1970 (losing the number one spot to Clive Dunn's Grandad), No.