An analysis of indirect objects in San Jeronimo Mazatec describes the superficial characteristics of indirect objects and the constructions in which indirect objects occur. It is argued that they occur as prepositional phrases that are obligatorily incorporated into the verb in a specific way. The constructions containing indirect objects are examined in the framework of relational grammar, with the claim that they occur in simple clauses and in clauses with Benefactive-3 Advancement, 2-3 Retreat (personal and impersonal), and (impersonal) Inversion. It is noted that 3-chomeurs, which sometimes occur, are markedly different from final indirect objects. It is also concluded that all of these claims are novel for Mazatec, and that such constructions have never before been posited for any Otomanguean language. (Author/MSE)