The aim of the HyTra workshop series is to bring together researchers developing and applying statistical, example-based, or rule-based translation systems, and those enhancing MT systems by combining elements from different approaches, to promote discussion and sharing of ideas among them. Hereby one relevant focus is on effectively combining linguistic and data driven approaches (rule-based and statistical MT). Another focus is on hybridization in the context of human translation. The 3rd Workshop on Hybrid Approaches to Translation (HyTra-3) intends to continue developing and empowering the research agenda in the area of Hybrid Translation already started at its first and second editions. The previous two editions (see http://www-lium.univ-lemans.fr/esirmt-hytra/ and http://hytra.barcelonamedia.org/hytra2013/) were co-located with EACL 2012 in Avignon and with ACL 2013 in Sofia, and the proceedings were published on the ACL Anthology.