Formal:
* Ло́ренс (Lorens) - This is the most common and formal transliteration of "Lawrence."
Informal:
* Ло́рри (Lorri) - This is a more informal and shortened version of "Lawrence," often used for friends and family.
* Ларри (Larry) - This is another informal option, sometimes used as a nickname for "Lawrence."
The best way to say "Lawrence" in Russian will depend on the situation and your relationship with the person you are talking to.