Henri Grob (4 June 1904 – c. 5 July 1974[a]) was a Swiss chess player, artist, and painter.

Grob pioneered eccentric chess openings, in particular 1.g4, about which he wrote a book (Angriff g2–g4, Zürich, 1942).

Grob was considered a leading Swiss player from the 1930s to 1950s and was invited to many prestigious closed tournaments.

All of the games were played against readers of the Neue Zürcher Zeitung, a leading Swiss newspaper.

Grob analysed the opening extensively and used it often in his correspondence games in the Neue Zürcher Zeitung.