dnL is the name of a soft drink produced by Dr Pepper/Seven Up, Inc. in the United States. It is part of the 7Up family of soft drinks, and was introduced in September 2002.
The product's name comes from the fact that the "dnL" logo is the "7Up" logo turned upside-down. The product itself is also the polar opposite of 7Up: while 7Up is lemon-lime-flavored, caffeine-free, and is colorless, dnL is citrus-flavored, contains caffeine, and is green in color. Much of dnL's marketing focuses on its "upside-down" theme, including its slogan being "Turn your thirst upside-down."