Can we delete Android system WebView app to free up space? I am looking to free up some space on my android device.
you cannot delete it without root as it is a system app.
even if you could delete it, it wouldn't free up space for other apps. System apps reside in their own space (/system), which during normal operations is mounted read-only.
even ignoring the other two points: deleting Webview would cause several apps to just stop working as they depend on it for displaying content (even local one).


TL;DR: No, don't.