Some good nicknames for Liam could be Lee, L, or even M.
The female form of the name Liam is typically spelled as "Leah".
Rick or Eri could be good nicknames for the name Eric.
Li Lee Lulu Lia Bear
Lulu or Lu are commonly used nicknames for the name Lucy.
Lari or Lala could be good nicknames for the name Lara.
The only Saint Liam I can find is a race horse by that name so, no, Liam is not a good choice for a Confirmation name
Liam Rhodes goes by Pookums.
Liam Graham goes by Li.
Liam Bashford goes by Bashford Twins.
Liam Weir goes by Convicted Rapist.
Liam Andrew Wright goes by Leroy.
Liam Kyle Sullivan goes by Kelly.
Liam Ace Findlay goes by L.A Findlay.
.
== == Yes, it's a popular Irish male name.
camal
Bill