Assisted suicide – sometimes referred to as medical aid in dying – means a procedure in which people take medications to end their own lives with the help of others, usually medical professionals. The term usually refers to physician-assisted suicide (PAS), which is an end of life measure for a person suffering a painful, terminal illness. Once it is determined that the person's situation qualifies under the physician-assisted suicide laws for that location, the physician's assistance is usually limited to writing a prescription for a lethal dose of drugs.

Laws regarding euthanasia or assisted suicide in Australia are matters for state and territory governments. As of November 2023 all states have implemented legislation creating an assisted suicide scheme for eligible individuals. These laws typically refer to assisted suicide as "voluntary assisted dying".