A concise typology of Koine Greek relative clauses is presented, drawing on data from the Greek New Testament. The analysis begins by pointing out that Koine uses the strategy of relative pronouns in all relative clauses. The other ways in which relative pronouns are used, in addition to introducing the relative clause, are then described. The position of the relative clause with relation to its head is discussed, arguing that only postnominal and internally headed relative clauses occur. Finally, the types of internally headed relative clauses found in Koine are described and three instances in which they function adverbially are examined. While the emphasis of the analysis is not on syntax, several potential problem areas for current transformational syntax are noted. Indexes to examples of phrase and clause types in the New Testament are appended, and a brief list of references is included. (MSE)