Sir Ronald Hibbert Cross, 1st Baronet, KCMG, KCVO, PC (9 May 1896 – 3 June 1968) was a British politician and diplomat.

He served with the Duke of Lancaster's Own Yeomanry and as a pilot with the Royal Flying Corps in World War I.

He served successively as government whip (1935), Junior Lord of the Treasury (1937), Vice-Chamberlain of the Household (1937–38) and Parliamentary Secretary to the Board of Trade (1938–39).

[1] The same year, he was appointed British High Commissioner to Australia and created a Baronet, of Bolton-le-Moors in the County Palatine of Lancaster.

He was appointed a Knight Commander of the Royal Victorian Order (KCVO) by Queen Elizabeth II when she visited Hobart during her Coronation Tour in 1954.