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We define Mellin amplitudes for the fermion-scalar four point function andthe fermion four point function. The Mellin amplitude thus defined has multiplecomponents each associated with a tensor structure. In the case of threespacetime dimensions, we explicitly show that each component factorizes ondynamical poles onto components of the Mellin amplitudes for the correspondingthree point functions. The novelty here is that for a given exchanged primary,each component of the Mellin amplitude may in general have more than one seriesof poles. We present a few examples of Mellin amplitudes for tree-level Wittendiagrams and tree-level conformal Feynman integrals with fermionic legs, whichillustrate the general properties.

Mellin Amplitudes for Fermionic Conformal Correlators