Delhi (/ˈdɛl.haɪ/), originally called Deerfield, is a town in Richland Parish, Louisiana, United States.
From 1968 until 1969, Delhi Fire Department was home to the now defunct Louisiana State Police - Troop O.
The site was abandoned in 1969 after thirteen months' operation, with state services reverting to Troop F in Monroe.
The reservoir project was pushed to fruition by State Senator Francis C. Thompson of Delhi.
According to The Delhi Dispatch, one story says that a Professor Allen chose the name after reading the poem "Lalla Rookh" by Thomas Moore.