Joannis

• Alternate forms for the name John
• Andreas Eudaemon-Joannis
• Giovanni Giorgi (composer)
• Giovanni Maria Alemanni
• Ioannis
• Iohannis
• Jan Weenix
• Jan z Lublina
• Jens Nilssøn
• Joanni Perronet
• Joannis Andreou
• Joannis Antonius de Sancto Giorgio
• Joannis Avramidis
• Joannis Capodistrias
• Joannis Eschuid
• Joannis Melissanidis
• Joannis Metaxas
• Joannis Phrangoudis
• Joannis Romberch de Kyrspe
• Joannis Vislicensis
• Joannis de Segovia
• Johann Hedwig
• Johannis (disambiguation)
• John Martyn (botanist)
• Joseph de Joannis