Johann (, ), typically a male given name, is the Germanized form of the originally Hebrew language name "Yohanan" (meaning "God is merciful"). It is a form of the Germanic and Latin given name "Johannes", which comes from Johan. The English language form is John. It is uncommon as a surname. People with the name include:

• Johann Adam Hiller
• Johann Adam Reincken
• Johann Adam Remele
• Johann Adolf I, Duke of Saxe-Weissenfels
• Johann Andreas Eisenmenger
• Johann Baptist Wanhal
• Johann Bernhard Fischer von Erlach
• Johann Bernoulli
• Johann Carl Fuhlrott
• Johann Casimir of Simmern
• Johann Casimir, Duke of Saxe-Coburg
• Johann Caspar Ferdinand Fischer
• Johann Caspar Kerll
• Johann Christian Bach
• Johann David Heinichen
• Johann David Köhler
• Johann Esch (died 1523), one of the first two Lutheran martyrs
• Johann Evangelist Haydn
• Johann Friedrich Agricola
• Johann Friedrich Reichardt
• Johann Fust (c. 1400-1466), German printer
• Johann Georg (disambiguation)
• Johann George, see Johann Georg
• Johann Gerhard
• Johann Gottfried Walther
• Johann Gustav Stickel
• Johann Hari
• Johann Heermann
• Johann Heinrich Buttstett
• Johann Jakob Froberger
• Johann Johannsson
• Jóhann Jóhannsson
• Johann Kraus
• Johann Lamont (born 1957), Scottish politician, leader of the Scottish Labour Party
• Johann Le Bihan
• Johann Lindner
• Johann Lohel
• Johann Ludwig Krebs
• Johann Lukas Schönlein
• Johann Martin Schleyer
• Johann Nepomuk Hiedler
• Johann Nepomuk Hummel
• Johann Pachelbel
• Johann Peter Kellner
• Johann Schicht
• Johann Schreck
• Johann Sebastian Bach
• Johann Sebastian Paetsch
• Johann Stamitz
• Johann Strauss I
• Johann Strauss II
• Johann Sziklai
• Johann Tserclaes, Count of Tilly
• Johann van Beethoven
• Johann Carl Vogel (1932–2012), South African physicist
• Johann Weyer
• Johann Wolfgang von Goethe
• Johann Zacherl