Olivian means 'olive tree'. It has traditionally been used for boys. The name Olivian is of Latin origin and is a masculine counterpart of the original traditional feminine name Olivia. The original form of the male version of the name is Oliver. It first gained popularity when William Shakespeare's play 'Twelfth Night' came out. Olivia is the beautiful heiress around which the play is based. It's popular in the US and has been on the top 100 names since 1990. It's also popular in the UK, Australia, and Canada. It's pronounced as Oh-LIV-ee-an. Some of its nicknames have their meaning; for example, Liv means 'life'.