BackgroundPublic trust is often advantageous for health authorities during crises such as the COVID-19 pandemic. Norwegian health authorities used the public´s high trust to control the pandemic, resulting in relatively few casualties.MethodsWe wanted to describe and compare the Norwegian public trust in GPs, public healthcare, information and treatment in hospitals before and during the early phases of the COVID-19 pandemic. Further, we wanted to investigate the relationship between somatic or mental illness, and trust in GPs and public health information, and to develop a theoretical understanding of the relationship between trust in healthcare institutions, generalised trust and the societal situation caused by the COVID-19 pandemic. We performed two surveys, the first in December 2019; the second in May 2020, thus providing two snapshots of the Norwegian public’s trust in healthcare and healthcare actors before and during the COVID-19 pandemic.ResultsThere was statistically significant increased trust in public healthcare, in treatment at hospital and in information at hospital after the outbreak of the COVID-19 pandemic. There was a non-significant rise in trust in GPs. We found that trust in public health information was not related to mental health nor having a chronic, somatic disease.ConclusionThe findings confirm that the Norwegian public’s trust in healthcare and healthcare actors is high. The trust levels are also relatively stable, and even show an increase during the early phases of the pandemic. We suggest that there is a dynamic relationship between trust in public health information, healthcare institutions, generalised trust and a societal crisis situation such as the COVID-19 pandemic. However, the GP-patient trust seems less affected by a crisis situation, than the public´s trust in healthcare institutions. This difference may be explained by the relative stability caused by mandates of trust obtained from the patient.