Ziaul is a given name. Notable people with the name include:

Ziaul Ahsan SBP, 2 Star rank Bangladesh Army officer A. K. M. Ziaul Ameen, Member of the 3rd National Assembly of Pakistan Ziaul Faruq Apurba (born 1983), Bangladeshi model and actor Sayed Ziaul Haq (1928–1988), Sufi saint of the Maizbhanderi Sufi order Syed Mohammad Ziaul Haque, Bangladesh Army officer and a fugitive Ziaul Haque (died 1998), scholar of economic history and Islamic studies Ziaul Islam (1952–2014), Bangladeshi ICC Trophy cricketer Ziaul Haque Mollah, Bangladesh Nationalist Party politician and former MP Md. Ziaul Haque Mridha, Jatiya Party politician and the former MP Ziaul Mustafa Razvi Qadri, Islamic scholar Ziaul Roshan (born 1989), Bangladeshi film actor and model, Ziaul Hasan Siddiqui, the chairman of Sonali Bank Limited Ziaul Haque Zia (1953–2016), Bangladesh Nationalist Party politician