Nikki Potnick's is believed to be the name of the Waitress which the gang has forgotten. That's why her nametag was missing at the reunion after Frank stole the Nikki Potnick name tag.
- Season One: Underage Drinking: A National Concern (mentioned only)
- Season Seven: The High School Reunion (mentioned only)
- There was fan speculation that Nikki Potnick was not the real name of the Waitress after Glenn Howerton tweeted that, "Sorry, but the Waitress' name is not Nikki Potnick. If u wanna know who N.Potnick is, re-watch S.1 Underage Drinking. First 10 mins."  But everyone knows that Dennis is bastard man.
|—||“You wanna know what else what would happen? We drove Nikki Potnick's car into a tree on Kelly Drive...”|
|“...with Sweet Dee in the backseat, puking all over the headrest because some guy talked to her that she liked, remember that?”||—|
|—||“Okay, Frank, first off, Nikki Potnick is a girl, okay? And secondly, she's not 65 years old.”|