There are a couple options when referring to the steering wheel on a boat or ship. The first is Ship's Wheel or Boat's Wheel, but I rarely hear these terms used (I've heard ship's wheel, but I've never heard anyone use the term boat's wheel). read more
The steering wheel on a boat is commonly called a Helm. However, I heard sometime people calling it Boat’s Wheel. But it doesn’t sound right to me. So my advice here is to stick with calling the steering wheel : helm. Indeed, The Helm of a boat is whatever is used to steered the boat, which is generally speaking, a tiller or a wheel. read more
The steering wheel on a power boat is usually called a steering wheel. The steering wheel on a ship, yacht or sail boat is usually called the ship's wheel. The steering wheel on an inboard motor boat may be called the rudder. read more