Silence Day or Day of Silence may refer to:

Day of Silence, a day in April designated to protest the bullying and harassment of lesbian, gay, bisexual, and transgender (LGBT) students

Nyepi, a Balinese "Day of Silence" that is commemorated every Isakawarsa (Saka new year)

Silence Day, an annual July 10 observance of silence for adherents of Indian author and spiritual figure Meher Baba

Meher Baba (born Merwan Sheriar Irani; 25 February 1894 – 31 January 1969) was an Indian spiritual master who said he was the Avatar, or God in human form, of the age. A major spiritual figure of the 20th century, he had a following of hundreds of thousands of people, mostly in India, but with a significant number in the United States, Europe and Australia.Meher Baba's map of consciousness has been described as "a unique amalgam of Sufi, Vedic, and Yogic terminology". He taught that the goal of all beings was to gain consciousness of their own divinity, and to realise the absolute oneness of God.At the age of 19, Meher Baba began a seven-year period of spiritual transformation, during which he had encounters with Hazrat Babajan, Upasni Maharaj, Sai Baba of Shirdi, Tajuddin Baba, and Narayan Maharaj. In 1925, he began a 44-year period of observed silence, during which he communicated first using an alphabet board, and by 1954, entirely through hand gestures using an interpreter. He died in 1969, and was buried in Meherabad. His tomb has become a place of pilgrimage for his followers, often known as "Baba lovers".