If you want to know who has blocked you from WhatsApp there is no menu where to tell us, but here you will find several ways to find out if a contact has blocked you.

How to know if you have been blocked from WhatsApp

To find out if a contact has blocked you from WhatsApp we have to see several options and if all or almost all of them match is that for sure that contact has blocked you.

We will go to the chat of the person we believe has blocked us and we will be able to see the first clue, which is to see their last connection time, in case it does not appear it may be an indication that they have blocked us, but we cannot be sure because that contact may have disabled the option to see the last connection or if it is available.
We will try to send a message to that person and that person should receive it with the double blank tick, if the second tick does not appear, it means that the person’s cell phone is turned off or that he/she has blocked us.
Add that contact to a WhatsApp group. In the case of being blocked by that contact, WhatsApp will not allow us to put that person in any group. This is one of the most efficient ways to see if a contact has blocked us, the problem is that if they have not blocked us, we will put the person we have doubts about in a group.