Ontario Genetic Test Directory

This directory lists diagnostic genetic tests available in Ontario for rare and inherited diseases, including molecular genetic, constitutional cytogenetic and pharmacogenetic tests.

This directory does not include:

• patient-paid testing
• genetic screening through Prenatal Screening Ontario
• genetic screening through Newborn Screening Ontario
• tumour testing through the Comprehensive Cancer Biomarker Testing Program

Please contact your local genetics laboratory to confirm availability of testing, patient eligibility or sample requirements.

See Genetics Guidance for evidence-based clinical guidance on genetic testing in Ontario, and the Ontario Genetics Clinic Directory for a list of genetics clinics in Ontario.

The information in this directory is intended for informational purposes only and may not reflect all recent updates.