Phase curve may refer to:

• Phase curve (astronomy) is the brightness of a reflecting body as a function of its phase angle.
• Phase response curve is the relationship between the timing and the effect of a treatment designed to affect circadian rhythms.
• Phase diagram is a type of chart used to show conditions at which thermodynamically distinct phases can occur at equilibrium.
• Phase angle (astronomy) is the angle between the light incident onto an observed object and the light reflected from the object.
• Phase line (mathematics) is a diagram that shows the behaviour of an autonomous ordinary differential equation

This disambiguation page lists articles associated with the title Phase curve.
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