Skip to main content

Updated March 13, 2024

Table of contents

Girl name origins & meanings

  • Irish : Wise one; river name

Girl name variations

Boy name origins & meanings

  • Irish : Old

How Popular Is The Name Shannon

Family name origins & meanings

  • Irish : reduced form of Shanahan.
  • Irish : reduced Anglicized form of Gaelic Ó Seanáin ‘descendant of Seanán’, a personal name based on a pet form of seán ‘old’.
  • Irish : in County Clare, a reduced Anglicized form of Mac Giolla tSeanáin ‘son of the servant of St. Seanán’. In the Irish midlands Leonard and Nugent have been adopted as equivalents of this name.

Famous people with this last name

Join the Family

Your partner in parenting from baby name inspiration to college planning.

Subscribe