  In this letter we describe an infinite family of new N=1 AdS_5/CFT_4 dual
pairs which arise from M5-branes wrapping Riemann surfaces in Calabi-Yau
threefolds. We use the relevant brane constructions to compute the central
charges of the infrared fixed points from the M5-brane anomaly polynomial. We
then present AdS_5 x M_6 solutions of eleven-dimensional supergravity which are
dual to these CFTs at large N. Finally, we provide a purely four-dimensional
field theory construction which flows to a special class of these fixed points.
These theories will be further elaborated upon in a companion paper.
