| Onoue, Masafusa | Exploration of the cosmic dawn with high-redshift quasars | 2018 | The Graduate University for Advanced Studies, NAOJ | GNIRS | Other |
| Vilardell, Francesc | Determination of the distance to the Andromeda Galaxy using variable stars | 2009 | Universitat de Barcelona | GMOS-N | Other |
| Beifiori, Alessandra | Dynamics induced by the central supermassive black holes in galaxies | 2010 | University of Padova (Italy) | NIRI+ALTAIR | Other |
| Moran, Paul | Multi-wavelength and Polarisation Studies of Pulsars: the Crab, Vela, and PSR J0205+6449 | 2014 | National University of Ireland, Galway | GMOS-N | Other |
| Toshikawa, Jun | Growth history of galaxy clusters traced by protoclusters at z~3-6 | 2015 | The Graduate University for Advanced Studies, Japan | GMOS-N | Japan |
| Hoyer Miranda, Sergio David | Search for unseen planets using transit timing variations | 2012 | Universidad de Chile | GMOS-S | Chile |
| Salinas, Ricardo | Dark matter in central and isolated galaxies | 2011 | Universidad de Concepcion | GMOS-S | Chile |
| Kellogg, Kendra | Investigating Brown Dwarf Atmospheres: Gravity, Dust Content, Cloud Structure and Metallicity | 2017 | University of Western Ontario | GNIRS/FLAMINGOS-2/GMOS-S | Canada |
| Bahramian, Arash | Behavior of low-mass X-ray binaries and their formation in globular clusters | 2016 | University of Alberta | NIFS | Canada |
| Rogerson, Jesse Aaron | Monitoring Broad Absorption-Line Quasar Variability | 2016 | York University (Canada) | GMOS-N/GMOS-S | Canada |
| Naud, Marie-Eve | Detection and characterization of distant giant exoplanets around low-mass young stars using direct imaging | 2016 | Universite de Montreal | GNIRS/GMOS-S/NICI/PHOENIX | Canada |
| Kalirai, Jasonjot | Astrophysics with white dwarfs | 2004 | University of British Columbia | GMOS-N | Canada |
| MacArthur, Lauren Anne | Stellar populations in spiral galaxies: Broadband versus spectroscopic viewpoints | 2005 | The University of British Columbia | GMOS-N | Canada |
| Vaduvescu, Ovidiu | Infrared properties of star forming dwarf galaxies | 2005 | York University | GMOS-N | Canada |
| Durant, Martin | Magnetars: distances, variability and multi-wavelength observations | 2006 | University of Toronto | NIRI | Canada |
| Gavriil, Fotis Panagiotis | Magnetar-like X-ray bursts from anomalous x-ray pulsars | 2006 | McGill University | NIRI | Canada |
| Baron, Frederique | Recherche de compagnons de type Jupiter à très grandes séparations autour d’étoiles jeunes dans le voisinage solaire | 2019 | Universite de Montreal | GMOS-S/FLAMINGOS-2 | Canada |
| Bruzzone, Juan Sebastian | Mapping Debris Disks at extreme contrast: near-IR Polarimetric Differential Imaging with the Gemini Planet Imager | 2018 | University of Western Ontario | GPI | Canada |
| Gonzalez, Marjorie Emily | X-ray observations of young neutron stars | 2007 | McGill University | NIRI | Canada |
| Meyer, R Elliot | Variation in the Initial Mass Function of Nearby Galaxies: Instrumentation and Observations | 2019 | University of Toronto | NIFS | Canada |
