75D/Kohoutek is a short-period comet discovered in February 1975, by Lubos Kohoutek.
Not to be confused with the much better-known C/1973 Kohoutek, 75D is a repeat visitor to the inner Solar System, with a period of about 7 years. It was placed on the discovery orbit when it passed 0.143 AU (21,400,000 km; 13,300,000 mi) from Jupiter on 28 July 1972. Apparitions have been dim, with the brightest being in 1988 at about apparent magnitude 13. It was last predicted in 2014, but was not seen, nor was it seen in its previous approaches in 2007, in 2000, or in 1994. The comet has been estimated to be 4.6 kilometres (2.9 mi) in diameter.
This comet was last observed by Mauna Kea on 19 May 1988. The Minor Planet Center has given the comet a "D/" designation as the comet is believed to be lost. The comet is calculated to come to opposition in October 2020 in the constellation of Pisces.