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
Other uses Cassini, South Australia Cassini oval, a mathematical curve described by Giovanni Cassini Cassini projection, in map making Cassini Glacier, in Antarctica Cassini periodical cicadas, two species of insect French cruiser Cassini, French Navy cruiser
See also Casini, a surname