Sir Rupert Alfred Kettle (9 January 1817 – 6 October 1894) was an English barrister and county court judge, involved in arbitration of trade disputes.

The family was descended from Henri Quitel, a Huguenot of Milhaud or Millau in Languedoc, who emigrated to Birmingham on the revocation of the edict of Nantes, and practised there the trade of glass-stainer.

He was the first president of the Midland iron trade wages board, and used the influence which this office gave him to persuade masters and men to accept arbitration in their disputes.

If the delegates of the contending parties could not agree, an independent umpire should have power to make a final and legally binding award between them.

In 1892 he resigned his office of county court judge, finding that his labours in connection with arbitration occupied the greater part of his time.