Manjay Lal (2 January 1925, Rampur Bakhari, Muzaffarpur, Bihar - 29 April 2007 Patna, Bihar, India) was an Indian politician from Janata Dal (United). He has served as member of the Lok Sabha (House Of The People) representing Samastipur (Lok Sabha constituency). He was elected to 9th, 10th and 13th Lok Sabha. Lal was also the Member of the Legislative Assembly in Muzaffarpur from 1977 to 1980.