The 1930–31 Rugby Union County Championship was the 38th edition of England's premier rugby union club competition at the time.
Gloucestershire won the competition for the seventh time after defeating Warwickshire in the final.
Final
Harold Boughton Gloucester K Durling Bristol Maurice McCanlis Gloucester Don Burland Bristol C A Osborne Cheltenham C B Carter Bristol W Thomas Lydney Sam Tucker Bristol W Wadley Gloucester Alfred Carpenter Gloucester R N Williams St Bartholomew's Hospital P G Lambert Bristol Leslie Saxby Gloucester J Davies Gloucester K Salmon Cross Keys H J Davies Rugby H E W Smith Rugby T P Mayo Coventry G Harriman Coventry S H Bonham Coventry A Gascoyne Coventry W E Lole Coventry T Coulson Coventry F Ford Coventry A Walker Coventry Reginald Roberts Coventry H Wheatley Coventry N C Marr Rugby Arthur Rowley Coventry Pop Dunkley Harlequins
See also English rugby union system Rugby union in England
References