The name Jentry is a girl's name meaning "aristocracy". Jentry and is often added to user-created lists like Jolly J Names and discussed in our forums with posts like "If you had 19 'J' Name Kids".
From the experts:
Jentry is an upwardly-striving word name that's gaining ground for girls as a new spin on Jennifer or Jenna. If classy is what you're after, a name with a genuine pedigree would serve you better. Others spellings -- Jentri, Jentree, Jentreigh -- abound.