A helmsman is the person who steers a ship or boat by controlling the helm, which is the steering mechanism (often a wheel or tiller). The helmsman stands at the helm and keeps the vessel on course, following directions from the captain or navigator.

On large ships, being a helmsman requires skill and constant attention. The helmsman must feel how the vessel responds to the wheel, adjust for wind and currents, and maintain a steady course even in rough seas. In stormy weather, an experienced helmsman might make dozens of small corrections every minute to keep the ship from veering off course.

On smaller sailboats, the helmsman might also be the captain, making all the decisions while steering. On military vessels or large commercial ships, the helmsman follows precise orders: “steady as she goes” means maintain the current heading, while “hard to starboard” means turn the wheel sharply to the right.

In a broader sense, people sometimes describe a leader as the helmsman of an organization, meaning they're steering it toward its goals. But the word's literal meaning remains rooted in the physical act of keeping a vessel on course through skill, attention, and steady hands.