What do you call a sailboat with 2 masts?

A sailboat with two masts is called a "ketch" if the main mast is taller than the second mast (the mizzen), or a "schooner" if the second mast is taller than the main mast. Both types have distinct rigging configurations and sail plans. Ketches are often favored for their balance and ease of handling, while schooners are known for their speed and versatility.