Iolanthe (disambiguation)
Iolanthe is a Gilbert and Sullivan comic opera.

Iolanthe may also refer to:

Arts and entertainment 
 Iolanthe, the protagonist in 1845 play King René's Daughter
 Iloja, translated as Iolanthe, a 1905 play by Jerzy Żuławski
 Iolanthe, a character in several books in the Jack West Jr series
 Iolanthe, a character in The Revolt of Aphrodite
 Iolanthe, a character in Dragons of the Highlord Skies

Other uses
 SS Iolanthe, a ship of Millbrook Steamboat and Trading Co.
 Iolanthe, Gordon, a heritage-listed house in the Sydney suburb of Gordon, New South Wales, Australia
 Iolanthe, an ancestor of the racehorse Poseidon

See also

 Iolanda, a given name
 Iolanta, an 1892 one-act lyric opera by Tchaikovsky
 Jolanda or Jolande, a given name
 Yolandi, a given name
 Yolanda (name), Spanish form 
 Jolanta, Central European form 

cs:Jolanta
de:Jolante
fr:Yolande
it:Iolanda
hu:Jolanda
nl:Jolanda
ja:ヨランダ
pl:Jolanta
pt:Yolanda
ru:Иоланта
sl:Jolanda
fi:Jolanda