The year 1676 in science and technology included many events, some of which are listed here.

See also: 1675 in science, other events of 1676, 1677 in science and the list of years in science.

Astronomy

• Ole Rømer measures the speed of light by observing Jupiter's moons
• Foundation of the Royal Greenwich Observatory

Physics

• Ole Rømer discovers that light has a finite speed
• Edme Mariotte publishes an essay describing Boyle's law, although following by 16 years Robert Boyle's discovery of the same inverse relationship between the volume and pressure of a gas.

Births

Deaths

• John Ogilby, English map-maker (born 1600)