Linked from
The 10 pages that link to Ordinary least squares, each with the reason it gives.
Linear regressionRelated: It is the standard fitting rule for linear regression.
Econometric modelBroader topic: It provides a common way to fit linear econometric models.
Ridge regressionCompared with: It is the unregularized objective that ridge regression extends.
Sum of squaresRelated: Its objective function is the residual sum of squares.
Y-interceptRelated: It can estimate the intercept alongside the slope in a linear model.