Inability or slowness to recall peoples' names. Especially in the case of names that you should be able to remember because you see the person more than occasionally. A variation of namesia is always wanting to call someone by a different name because they remind you of someone else (see "clonesia").
At the family reunion, I was embarrassed that my namesia prevented me from recalling my cousin's name.
by Linwood May 04, 2009
Amnesia related to forgetting people's names
Jack has namesia.He could not remember his wife's name
by TOsman November 29, 2014