Treebanks have become crucial for the development of data-driven approaches to natural language processing, human language technologies, grammar extraction, and linguistic research in general. Manifold projects aim at compiling representative treebanks for specific languages. Other projects focus on the development of tools for exploration of annotated treebanks, or explore annotation beyond syntactic structure and beyond single languages. The Seventh International Workshop on Treebanks and Linguistic Theories (TLT7) provides a forum for researchers in the field of Computational Linguistics who are experts in the design, creation and exploitation of treebanks and their relation to linguistic theories. A selection of 16 workshop papers is published in these proceedings. Together, they cover a wide range of topics, including the building, querying, exploring, exploiting and evaluating of treebanks.