It depends on the crew and the unit SOP. I spent a large portion of my career as a tank commander, but never once did I put my name on the tank or any of the tanks in the battalions I've been in. One battalion I served in didn't even put tank names on. Other battalions, tank names were customary.
I've seen M113s in our unit and others that had the driver & TCs name on a sand color block that painted on the hull side below the driver's hatch.