K series may refer to: Lincoln K series, a line of luxury vehicle Scania K series, a series of bus chassis with longitudinal rear-mounted engines Skoda K series, a heavy howitzer K series engine (disambiguation) International Harvester K and KB series, a line of heavy trucks of the 1940s QI (K series), the eleventh series of quiz show QI Sony Ericsson K series, a series of cell phones K-series (trains), a type of train in China "K" series, a set of messages in the military Variable Message Format data protocol K Series (TV series), a television programming block on Puthuyugam TV See also J series (disambiguation) L series (disambiguation)