Use academic degrees in thesis acknowledgments In theses, students typically write acknowledgments thanking their supervisor, co-supervisor, other advisors, etc.

Maybe everyone can just do it at will, but is there any best practice, if academic degrees should be used in the acknowledgements?
In the ones I have seen, they are mostly omitted, but my guess is that this is pretty country and field dependent. You should look at other thesis published in your department, and see if they include them.

Once you know what the norm is, do as you wish. Acknowledgements are the part of your thesis that is most yours, and you should write whatever feels right.