@@PROCID
Returns the object identifier (ID) of the current Transact-SQL module. A Transact-SQL module can be a stored procedure, user-defined function, or trigger.
https://msdn.microsoft.com/en-us/library/ms174408(v=sql.105).aspx
So this should work:
object_name( @@procid )
"Do not seek to follow in the footsteps of the wise. Instead, seek what they sought." - Matsuo Basho