Adolf Georg Olland (13 April 1867 – 22 July 1933) was the leading Dutch chess master in the time before Max Euwe. Born in Utrecht, he was a medical doctor. Olland took 3rd at Amsterdam 1887 (Dirk van Foreest won); shared 1st at Amsterdam 1889 (Hauptturnier); took 2nd, behind Rudolf Loman, at Utrecht 1891; took 5th at Groningen 1893 (Loman won); took 2nd, behind Loman, at Rotterdam 1894; shared 1st at Arnheim 1895; took 2nd at Amsterdam 1899 behind Henry Ernest Atkins; took 2nd, behind Rudolf Swiderski, at Munich 1900 (12th DSB–Congress, Hauptturnier).