A new campaign has been launched in an effort to deal with the issue
A third of trainee doctors say they have experienced bullying or undermining behaviour during their training.
Research cited by the Irish Medical Organisation (IMO) on the launch of their campaign to tackle the issue also suggests that over half of trainee doctors have also witnessed someone else being bullied at work.
Trainees who were bullied were also more likely than those who were not to say they were leaving medical practice in Ireland.
Speaking at the launch Dr. John Duddy, President of the IMO said: "Being subjected to unacceptable behaviour can lead to problems such as stress, anxiety and erosion of self-esteem. We must ensure that our trainees work in a respectful and safe environment that allows them to achieve their full potential as doctors."
As part of the campaign, the IMO, the Irish Postgraduate Training Forum and the Health Service Executive (HSE) signed a new Respect Charter.
"This Respect Charter clearly demonstrates that we all recognise there is a problem and working together we are determined to change the culture and improve the experience of our trainees," Dr Duddy said.
"There are inherent pressures and stresses in training to be a doctor but unacceptable behaviour need not be one of them."