In the travel sector, "OD" is often used as a contraction for "origin - destination" - a description of a journey by its departure point (Origin) and arrival point (Destination)
Other uses
Odh or Od, a community in India and Pakistan, or their language
O.D. is one of the founders of the industrial/metal/electronic band Velcra. He has worked on samples/programming and guitars on the band's first two albums and is the main producer on their third album.
Lucy Evans, 51, was told she'd never be able to run again and couldn't walk for three months after suffering severe back pain - but now she's preparing for the London Marathon... .
A dying man staggered off a packed Miami trolleybus soaked in his own blood after being fatally-stabbed by a stranger during an argument ...Moments earlier, he'd been knifed by a man police later identified as LamontCollins, 46, NBC6 reported ... .