Helena can refer to:

• Saint Helena (Island in the Atlantic Ocean)
• Helena, mother of Constantine the Great (also known as Helena of Constantinople, a Saint in the Roman Catholic and Orthodox Christianity)
• such cities as:
  • Helena, Alabama
  • Helena, Arkansas - site of a Civil War battle
  • Helena, Montana - the state capital
  • Helena, Ohio
• Helena, a character in William Shakespeare's play A Midsummer Night's Dream.
• Helena is a character from the Dead or Alive video game series
• 101 Helena is an asteroid.
• Helena, after Helen of Troy, is an old name for a kind of St. Elmo's Fire.

• You may also be looking for Helen, Helene, or Hellen.