Dion or Dio may refer to:
Dion (/ˈdaɪɒn, ən/; Greek: Δίων ὁ Συρακόσιος; 408–354 BC), tyrant of Syracuse in Sicily, was the son of Hipparinus, and brother-in-law of Dionysius I of Syracuse. A disciple of Plato, he became Dionysius I's most trusted minister and adviser. However, his great wealth, his belief in Platonism and his ambition aroused the suspicions of Dionysius' son and successor, Dionysius II. An indiscreet letter from Dion to the Carthaginians led to his banishment. Settling in Athens, he lived a prosperous life until Dionysius dispossessed him of his estates and income. Landing in Sicily in 357 BC, he was successful in conquering Syracuse (other than the citadel). However, Dion soon quarrelled with the radical leader Heraclides and was forced into exile. Recalled in 355 BC, he became master of the whole city but his imperious behaviour and financial demands on the people of Syracuse soon alienated the population. His supporters abandoned him and he was assassinated. His attempts to liberate Sicily only brought political and social chaos to the island which would last for nearly 20 years.
The Day Utility was an automobile manufactured in Detroit, Michigan by the Day Automobile Company from 1911-14. The Day used a four-cylinder, 30 horsepower (22 kW) engine and shaft drive. Removal of the rear seat and doors allowed the car to be converted from a five-seater touring car to a light truck in one minute. As a truck, the Day was able to carry up to 1,000 lb (450 kg) in a 36-inch (910 mm) by 96-inch (2,400 mm) cargo space. The rear seat could be lifted away by triggering two spring locks. The Day had an advertised price of $950US.
Day is a marble sculpture by Michelangelo, datable to 1526–31. It is a pair with Night on the tomb of Giuliano de' Medici in the Medici Chapel in San Lorenzo in Florence.
Day is a surname. Notable people with the surname Day include:
As we're nearer to the end;
Here we are again
Seems like we're always working
At this time of year
We have come a long way, my friend
How many hours we have spent
Seems like we're always working
At this time
This is my day
And I wanted you to know
This is my day
And I'm gonna be okay
Through the steady sweep of days
Keeping focus as the currents race
Seems like we're always working
At this time
This is my day
And I wanted you to know
This is my day