Qazi Muhammad Yousaf (1 September 1883 – 4 January 1963) was a notable companion of Mirza Ghulam Ahmad. He was a profound scholar, a poet, a prolific writer and a great Ahmadiyya debater. He was an Ahmadiyya historian and biographer. Authored more than hundred pamphlets and books. He was regional head Amir of North West Frontier chapter of the Ahmadiyya Community.
Qazi Muhammad Yousaf was born September 1, 1883, at Hoti, Maradan. The family shifted to Peshawar in 1884. His father, Qazi Muhammad Siddique, was a religious scholar and sometimes ‘Imam’ at the Mosque in Gul Badhsh Ji Street, Peshawar. In 1896, at age 12, Muhammad Yousaf was admitted to Mission High School Peshawar and later studied at Islamia High School, completing his Secondary School Certificate Examination.
In 1901, he came across books by Mirza Ghulam Ahmad, namely ‘Shuhna e Haq’ and ‘Izala e Auhaam’
He writes he came to know for the first time about the issue of life and death of Jesus son Mary. These books convinced him about the mortal death of Jesus son Mary. He came to know about the claims of Mirza Ghulam Ahmad through his book Izala e Auhaam. He used to discuss these issues with an Ahmadi teacher, namely Munshi Khadim Hussain, who was his English language teacher at the Islamia High School, Peshawar.
On January 15, 1902, Qazi Muhammad Yousaf converted to Ahmadiyya Islam due to the efforts of his English teacher Munshi Khadim Hussain He attended the Annual Ahmadiyya Convention in December 1902 and physically took the Bay'ah (Ahmadiyya) at the hands of Mirza Ghulam Ahmad. In Qadian, he also had the opportunity to meet Sahibzada Abdul Latif Yousaf attended the Ahmadiyya Annual Conventions at Qadian in 1904, 1906, and also visited Qadian in November 1907, to participate in the wedding ceremony of Mirza Bashir Ahmad (1893–1963) son of Mirza Ghulam Ahmad.