This study sought to report the degree to which postgraduate trainees in radiation oncology perceive their education has been impacted by the COVID-19 pandemic. A cross-sectional online survey was administered from June to July 2020 to trainee members of the Canadian Association of Radiation Oncology (CARO) (
n
= 203). Thirty-four trainees responded with a 17% response rate. Just under half of participants indicated that COVID-19 had a negative/very negative impact on training (
n
= 15; 46%). The majority agreed/strongly agreed that they feared family/loved ones would contract COVID-19 (
n
= 29, 88%), felt socially isolated from friends and family because of COVID-19 (
n
= 23, 70%), and had difficulty concentrating on tasks because of concerns about COVID-19 (
n
= 17, 52%). Changes that had a negative/very negative impact on learning included limitations to travel and networking (
n
= 31; 91%) and limited patient contact (
n
= 19; 58%). Virtual follow-ups (
n
= 25: 76%) and in-patient care activities (
n
= 12; 36%) increased. Electives were cancelled in province (
n
= 10; 30%), out-of-province (
n
= 16; 49%), and internationally (
n
= 15; 46%). Teaching from staff was moderately reduced to completely suppressed (
n
= 23, 70%) and teaching to medical students was moderately reduced to completely suppressed (
n
= 27, 82%). Significant changes to radiation oncology training were wrought by the pandemic, and roughly half of trainees perceive that these changes had a negative impact on training. Innovations in training delivery are needed to adapt to these new changes.
Supplementary Information
The online version contains supplementary material available at 10.1007/s13187-022-02192-6.