NEON – The observing school will take place in Greece, June 2016.
ESO/OPTICON – An Instrumentation School in Garching, Germany, in May 2016.
PSI – The Petnica Summer Institute is located in Serbia and covers a range of topics in both Astrophysics and AstroParticles. This year the school focuses on General Relativity.
IDPASC – The International Doctorate Network in Particle Physics, Astrophysics and Cosmology School will be in May, 2016, in Slovenia.
VOSS – The Vatican Observatory Summer School will take place late May-June 2016. It focuses on Water in the Solar System and Beyond.
ISSJC – The Erice International School of Science Journalism has lots of grants available for the school taking place in June 2016 in Italy.
Alpach – In July 2016 visit the Tyrol region (mountains!) of Austria to learn about space in the context of the Global Water Cycle.
E.A. Milne Centre – An STFC Introductory Summer School in Astronomy in the UK, August – September 2016. Includes solar physics, gravitational waves, the cosmic microwave background and large-scale structure. As well as sessions on computing, teaching, outreach, careers and the industry.
IMPRS – A summer school in Heidelberg, Germany, hosted by Max Planck. It focuses on astrostatistics and data mining, September 2016.
ESA – The ESA/ELGRA Gravity-Related Research Summer School is for Bachelor and Masters students, taking place at the end of June 2016, in Belgium.
KAS16 – An Astrophysics School in Katmandu, Nepal, October 2016.
Dunlap – A five day summer school for those interested in astronomical instrumentation in Toronto, Canada.
Fermi – The Fermi Summer School is located in Delaware, USA, and focuses on analysing data from Fermi (go figure).
CGWAS – The Caltech Gravitational Wave Astrophysics School is aimed at junior graduate and senior undergraduate students.
ASP – The African School of Fundamental Physics and Applications has bursaries and full support available. Taking place in Rwanda, August 2016.
ISIMA – The International Summer Institute for Modelling in Astrophysics is a 6 week programme for graduate students.
ISYA – The International School for Young Astronomers is a three-week international postgraduate school, taking place in a different country each year.