* A surname.
* A male given name transferred from the surname.
* A female given name popular in the 2000s, following Alison and Madison.
* 2009 J. Scott Romig, _The Lookout Tree_, Author House, ISBN 1449041426, page 1:
My name is ADDISON Jane Dawson, but you can call me Addy; everyone else does. I was named after my great grandfather, ADDISON Jay Dawson, - - -
* Addison's disease