How do you call the Front end of a boat?

The Bow.

Transom - is the member forming the backend of a boat. The back of a boat is known as the stern. ~Larry Merritt, Coconut Creek, FL (and avid kayaker).

The stern.

Stern.

Yes the 'bow' is the front of the boat and the back of the boat is called the 'stern'. bow is in the front its the ponity part of the boat, the stern is all of the back of the boat.