Iago is the main antagonist in the play Othello by William Shakespeare

Iago may also refer to:

• Iago (fish), a genus of hound sharks
• Iago sparrow, endemic to the Cape Verde archipelago

• Iago (Aladdin), a parrot in the 1992 film Aladdin and various Disney media
• Iago, a character in the American television series Gargoyles

• Iago (footballer, born 1995) or Iago Sampaio Silva, Brazilian footballer
• Iago (footballer, born 1997) or Iago Amaral Borduchi, Brazilian footballer
• Iago (footballer, born 1999) or Iago Fabrício Gonçalves dos Reis, a Brazilian footballer
• Iago Falque (born 1990), a Spanish footballer who plays as an attacking midfielder
• Iago Aspas (born 1987), a Spanish professional footballer who plays as a striker.
• Iago Iglesias (born 1984), a Spanish professional footballer

• Iago, a variant form of the name Jago
• Iago, a pen-name of Sir Robert Walpole
• Iago ap Beli (c. 560–c. 616), king of Gwynedd
• Iago ap Idwal (ruled 950–979), king of Gwynedd

• Iago, Texas, United States
• Santiago, Cape Verde, an island also called "St. Iago" or "St. Jago"

• Iago (film), a 2009 Italian film
• IAGO, the International Abstract Games Organization
• Iago, a GWR Banking Class steam locomotive on the Great Western Railway
• Porth Iago, the site of the ancient St Medin's Church near Aberdaron, Gwynedd, Wales
• A Spanish and Welsh variant of the name Jacob

• All pages with titles beginning with Iago
• Jago (disambiguation)
• Yago (disambiguation)