Ogonek (Polish for "little tail") is a diacritic hook placed under the lower right corner of a vowel in the Latin alphabet used in Polish, Lithuanian, Navajo and Tutchone. In Polish and Navajo it indicates that the vowel is nasalized (in Tutchone too (?)); in Lithuanian it formerly indicated nasalization but this is no longer distinctive. In Navajo it can be combined with the acute accent.

The HTML/Unicode numbers for ogonek letters are:

  
  
  
  
  
  
  
Upper Case Lower Case
Letter HTML Letter HTML
Ą Ą ą ą
Ę Ę ę ę
Į Į į į
Ǫ Ǫ ǫ ǫ
Ų Ų ų ų