Is little steven van zandt and Ronnie van zandt related?

If you're referring to the famous musicians, then the answer is no.

Steven Van Zandt (E Street Band) was born Steven Lento, and later took his step-father's last name.

Ronnie Van Zant (Lynyrd Skynyrd) used his real name... but note the different spelling.

However, Ronnie Van Zant was the brother of Johnny and Donnie Van Zant (who both Lynyrd Skynyrd at different times).

Steven Van Zandt is the half-brother of actor Billy Van Zandt.