Yield curve or Yield-curve spread usually refers to the relationships among bond yields of different maturities.
Yield curve or Yield-curve spread may also refer to:
In economics Yield spread – difference between the quoted rates of return on two different investments I-spread — difference between a bond yield and an interpolation from the Treasury yield curve Z-spread — parallel spread of a bond yield over the zero-volatility Treasury yield curve
In materials science Stress–strain curve — physical relationship between the stress and strain of a particular material