[I was in the process of typing as the other post went up, duplicate]
No. This is covered in the Spell (Target) section:
Unless a spell has a perceptible effect, a creature might not know it was targeted by a spell at all. An effect like crackling lightning is obvious, but a more subtle effect, such as an attempt to read a creature’s thoughts, typically goes unnoticed, unless a spell says otherwise.
However, a Rule 0 about making the rules fit your game might lead to modification. For example, in prior editions, a character could attempt a very high "Spellcraft" check to identify a spell they saved against.