Robert "Bob" John Barnshaw (14 March 1889 – 30 January 1974) was an English professional association footballer who played as a centre half in The Football League for Sheffield United, Watford and Aberdare Athletic.After starting his career at hometown club Hebburn Argyle Barnshaw moved to Sheffield Wednesday but an injury prevented him from ever playing in the first team. Barnshaw returned to Hebburn Argyle despite Wednesday retaining his registration.