Abstract: The invention concerns a mast for sailboats, apt to support two distinct sailcloths forming a wing sail. According to the invention, the mast comprises a tubular body which has a cross section divided in two parts by an axis transversal to the longitudinal axis of the boat, a first part facing the bow and a second part facing the stern. The first part facing the bow has a markedly convex or substantially semielliptic curved profile, while the second part facing the stern has a rounded tip profile or a substantially semicircular profile. Said tubular body comprises anchor means for the two sailcloths forming the wing sail, positioned along two generatrices crossing two points which are symmetrical in respect of the center or coinciding with the center of said first part facing the bow.