2687 20160701171709.0 10.1017/S1743921316000879 DOI ASTROimport-844 Mason, B. D. 2016 Division G Commission 26: Double Multiple Stars This report covers the workings of Commission 26 over the triennial period 2012-2015 and is the last report of the Commission. Included are reports from Working Groups and the Commission 26 Circular; all of which will be continuing in Commission G1 (Binary and Multiple Stars). Also included is a report of the Splinter Meeting of Commissions 26, 42 G1, submitted observatory reports and a history of Commission 26. Balega, Y. Docobo, J. Arenou, F. Scardia, M. Tamazian, V. Ten Brummelaar, T. Lampens, P. Reipurth, B. Tokovinin, A. Transactions of the International Astronomical Union, Series A 29 2016 388-412 http://esoads.eso.org/abs/2016IAUTA..29..388M published in NONREF