Kachnaaw is a village in Musafirkhana tehsil in district of Sultanpur, Uttar Pradesh, India. As per the data provided by Census of India in 2011, total population of Kachnaaw was 4,989 which includes 2,575 males and 2,414 females. Kachnaaw covers 530.19 ha area. Pincode of Kachnaaw is 227815.