Cassini may refer to:
People
Cassini (surname) Oleg Cassini (1913–2006), American fashion designer
Cassini family:
Giovanni Domenico Cassini (1625–1712), Italian mathematician, astronomer, engineer, and astrologer Jacques Cassini (1677–1756), French astronomer, son of Giovanni Domenico Cassini César-François Cassini de Thury (1714–1784), French astronomer and cartographer, son of Jacques Cassini Jean-Dominique, comte de Cassini (1748–1845), French astronomer, son of César-François Cassini de Thury Alexandre Henri Gabriel de Cassini (1781–1832), French botanist and naturalist, son of Jean-Dominique de Cassini
Planetary science
Cassini's laws on the motion of the Moon
Cassini Division, a gap in the rings of Saturn
Cassini–Huygens, the space mission to examine Saturn and its moons, of which the Cassini orbiter was a part Cassini (Martian crater) Cassini (lunar crater) 24101 Cassini, an asteroid 24102 Jacquescassini, another asteroid Cassini Regio, the dark region of the moon Iapetus