This book constitutes the refereed proceedings of the 9th International Conference on Model Transformation, ICMT 2016, held in Vienna, Austria, in July 2016, as Part of STAF 2015, the federation of a number of the leading conferences on software technologies. The 13 revised papers were carefully selected from 36 submissions. The papers are organized in topical sections on model transformation languages, model transformation tools, developing model transformations, applications of model transformations, and looking ahead.