What is the collective noun of table?

There isn't a specific, commonly used collective noun for tables.

Here are a few options you could use, depending on the context:

* A set of tables

* A collection of tables

* A group of tables

* An array of tables

* A cluster of tables

You could also be more descriptive, like:

* A banquet of tables (for a formal gathering)

* A forest of tables (if there are many closely spaced tables)

Ultimately, the best choice depends on the specific situation and the impression you want to create.