01
01 or '01 may refer to:

The year 2001, or any year ending with 01
The month of January
1 (number)

Music
'01 (Richard Müller album), 2001
01 (Son of Dave album), 2000
01 (Urban Zakapa album), 2011
O1 (Hiroyuki Sawano album), 2015
01011001, the seventh studio album from Arjen Anthony Lucassen's Ayreon project

Other uses
01 (telephone number), United Kingdom internal dialing code for London between the late 1950s and 1990
Lynk & Co 01, a compact SUV built since 2017
Zero One also known as Machine City, a city-state from the Matrix series
Kolmogorov's zero-one law, a law of probability theory
Pro Wrestling ZERO1-MAX, a wrestling promotion formerly known as Pro Wrestling ZERO-ONE
BAR 01, a Formula One chassis
The number of the French department Ain
The codename given to the Wing Gundam by Oz in the anime Gundam Wing

See also
One (disambiguation)
O1 (disambiguation)