Over 250 children have been waiting at least a year for an appointment with the mental health service.
According to freedom of information documents, 35 have been on the list for over 18 months.
The HSE's latest figures show 2,559 kids are waiting for an appointment with the HSE's Child and Adolescent Mental Health Service.
251 have been waiting for more than 12 months, with 120 waiting over 15 months, and 35 on the list for over 18 months.
The College of Psychiatrists' Dr Maeve Doyle, a consultant child and adolescent psychiatrist, says the service is chronically underfunded.
Cork and Kerry is the worst affected area, with nearly 500 children waiting for an appointment.
Across the two counties, 57 kids have been waiting over a year.
The HSE says there are significant efforts ongoing to reduce waiting times for Camhs, which it says are partly down to recruitment issues.
