Euthanasia and assisted suicide, involving the intentional termination of a patient’s life, are subjects of global debate influenced by cultural, ethical, and religious beliefs. This study explored the attitudes of the general public toward euthanasia, finding varying levels of support. A cross-sectional study was conducted. This research specifically evaluated the perspectives of 5804 Lithuanian residents using a survey distributed through social media, which presented medical scenarios on life-preserving interventions. Analysis indicated that gender, religion, experience in caring for patients in a terminal condition, education, and age significantly influenced the attitudes of the respondents toward end-of-life decisions. Specifically, factors like being non-religious or having less experience in caring for the terminally ill correlated with a more positive opinion regarding euthanasia and other forms of medical assistance in dying.