G0

G0, G0, G0, g0, or G-zero, may refer to:

Science

 * G0 phase of cell division
 * G0 star, a subclass of G-class stars
 * Conductance quantum ("quantum of conductance"), notated G0
 * Geometric continuity, notated G0
 * Group 0, an alternate name for Group 18 of the Periodic table – the Noble gases
 * G0, a hypothetical group in the Periodic table, which would consist of neutronium
 * Standard gravity, notated g0

Other uses

 * G0, abbreviation for ground zero
 * G0, the name of the musical note G in octave 0
 * G-Zero world – the term used for the emerging power vacuum in international politics in the early 21st Century
 * Ghana International Airlines, IATA airline designator G0
 * G0, a block of character codes in the Teletext character set