Senior Sunday is a term used to describe a social media trend where high school seniors post pictures of themselves on Sundays, often with captions related to their upcoming graduation. The trend is popular in the United States and has been around for several years. While some seniors use Senior Sunday as a way to celebrate their upcoming graduation and share their excitement with friends and family, others feel pressure to participate and worry about the quality of their photos. Some churches also celebrate Senior Sunday as a way to recognize graduating seniors and offer them words of encouragement. Additionally, some photographers offer Senior Sunday photo sessions to high school seniors.