W0 may refer to: Nominal day, ignoring the variation followed via the Equation of Time, a variable in the equations of Arthur Thomas Doodson A variable for a word in the PICAXE microcontroller Short Run Consumption Function, the initial endowed wealth level of a particular individual in the Life-cycle Income Hypothesis First step of the W0–W6 scale for the classification of meteorites by weathering W0 may refer to the principal branch of the Lambert W Function
See also 0W (disambiguation)