The Macchi M.16 was a light, single-seat aircraft designed by Alessandro Tonini and produced by Macchi in Italy in 1919.

It was a single-bay biplane with unstaggered wings and a largely conventional design except for an unusually deep fuselage that extended in a bulge below the lower wing. The landing gear axle being sprung directly on the bottom longerons with shock cord. The plane could also be fitted with pontoons.

The M.16 was developed in parallel with the Macchi M.20, a two-seat civil trainer aircraft which it resembled and with which it shared many common features.

The M.16 proved a successful sporting type, setting an altitude record of 3,770 m (12,370 ft) in 1920 while competing for the Coppa Mappelli (“Mapelli Cup”), and winning first prize in the competition in 1921.

The United States Navy purchased three float-equipped examples for evaluation as communication floatplanes.

Powerplant: 1 × Anzani, 22 kW (30 hp)
Wingspan: 6.00 m (19 ft 8 in)
Wing area: 11.3 m2 (122 sq ft)
Length: 4.43 m (14 ft 6 in)
Height: 2.12 m (7 ft 0 in)
Empty weight: 160 kg (350 lb)
Gross weight: 260 kg (570 lb)
Maximum speed: 165 km/h (103 mph, 90 kn)
Landing speed: 25 mph
Range: 420 km (260 mi, 230 nmi)
Crew: 1, pilot