Variability in a software system is reflected in and facilitated through the architecture of that system. The Third International Workshop on Variability in Software Architecture (VARSA) was held in conjunction with the 11th Working IEEE/IFIP Conference on Software Architecture 2014 in Sydney, Australia. Based on the findings from previous editions of VARSA, this edition aimed at exploring methods, technologies and tools to handle variability at the software architecture level. The workshop featured one industrial keynote talk, one academic keynote talk and five research paper presentations.