The Bootes Void there may be places where you will find the least affect of gravity.

https://en.wikipedia.org/wiki/Bo%C3%B6tes_Void

The space between superclusters of galaxies will be places where there is not enough gravitational attraction from an entire supercluster to hold objects to its gravity, though you may find entire galaxies in these kind of spaces.

But in theory there is nowhere with no gravity.