Regression or regressions may refer to:
Arts and entertainment Regression (film), a 2015 horror film by Alejandro Amenábar, starring Ethan Hawke and Emma Watson Regression (magazine), an Australian punk rock fanzine (1982–1984) Regressions (album), 2010 album by Cleric
Computing Software regression, the appearance of a bug in functionality that was working correctly in a previous revision Regression testing, a software testing method which seeks to uncover regression bugs
Hypnosis Age regression in therapy, a process claiming to retrieve memories Past life regression, a process claiming to retrieve memories of previous lives
Science Marine regression, coastal advance due to falling sea level, the opposite of marine transgression Regression (medicine), a characteristic of diseases to express lighter symptoms or less extent (mainly for tumors), without disappearing totally Regression (psychology), a defensive reaction to some unaccepted impulses Nodal regression, the movement of the nodes of an object in orbit, in the opposite direction to the motion of the object
Statistics Regression analysis, a statistical technique for estimating the relationships among variables. There are several types of regression: Linear regression Simple linear regression Logistic regression Nonlinear regression Nonparametric regression Robust regression Stepwise regression Regression toward the mean, a common statistical phenomenon
See also Infinite regress, a problem in epistemology Regress (disambiguation)