Ubaydul Haq is a Bengali masculine given name of Arabic origin meaning Servant of the Truth. It may refer to
M. Obaidul Huq (died 2012), Bangladeshi engineer, freedom fighter and politician Obaidul Haque (1934–2008), Bangladeshi Islamic scholar and politician Obaidul Huq (1911–2007), Bangladeshi cinematographer Obaidul Huq Khandaker, Bangladeshi politician Ubaidul Haq (1928–2007), Bangladeshi Islamic scholar and former khatib of Baitul Mukarram National Mosque
See also Ubayd (name) Haque