  We formulate supersymmetric Euclidean spacetime Ad* lattices whose classical
continuum limits are U(N) supersymmetric Yang-Mills theories with sixteen
supercharges in d=1,2,3 and 4 dimensions. This family includes the especially
interesting N=4 supersymmetry in four dimensions, as well as a Euclidean path
integral formulation of Matrix Theory on a one dimensional lattice.
