Jonathan D. Tisdall (born August 26, 1958 in Buffalo, New York) is a grandmaster of chess (title awarded 1995) and works as a freelance journalist. An American citizen by origin, he became Irish and later Norwegian. His father is Irish and his mother is Japanese.
He was Norwegian Chess Champion in 1987, 1991, and 1995. Combining chess with his job as a journalist, he often attends major chess events as a reporter for Reuters.
He is one of two people on the staff of the English-language section of the Norwegian newspaper Aftenposten's internet edition. He has also written articles in magazines such as The Spectator, The Economist, and Scanorama.
In recent years, he has been studying the Japanese chess variant of shogi.