John Bartholomew Callan KC (15 August 1882 – 12 February 1951) was a New Zealand judge. He was a Justice of the Supreme Court (now known as the High Court of New Zealand) (1935–51).
جون كالان (بالإنجليزية: John Callan) هو محامي نيوزيلندي، ولد في 15 أغسطس 1882 في دنيدن في نيوزيلندا، وتوفي في 12 فبراير 1951 في أوكلاند في نيوزيلندا. (ar)
John Bartholomew Callan KC (15 August 1882 – 12 February 1951) was a New Zealand judge. He was a Justice of the Supreme Court (now known as the High Court of New Zealand) (1935–51). (en)