How do you address a notary?

A notary public is a public officer, and should be addressed as "Mr. Smith" or "Ms. Smith" when speaking to the notary.

When writing a letter or sending an invitation to a notary, it would be proper to address the notary as:

John Smith

Notary Public

In New Hampshire, a notary should be addressed as:

John Smith, Esq.

Notary Public

as they are addressed as such by the Governor.

Because notaries are appointed, and not elected, they are not usually styled "The Honorable" - although some states have traditionally addressed their appointed officials as such.