The Zeta Model is a mathematical model that estimates the chances of a public company going bankrupt within a two-year time period. The number produced by the model is referred to as the company's Z-score (or zeta score) and is considered to be a reasonably accurate predictor of future bankruptcy.

The model was published in 1968 by New York University professor of finance Edward I. Altman. The resulting Z-score uses multiple corporate income and balance sheet values to measure the financial health of a company.