Lyndon \l(y)-ndon, lyn-don\ as a boy's name is pronounced LIN-dan. It is of Old English origin, and the meaning of Lyndon is "linden tree hill". Surname. American President Lyndon Baines Johnson.

Lyndon has 9 variant forms: Lin, Linden, Lindon, Lindy, Lyn, Lyndale, Lyndall, Lyndell and Lynden.

Baby names that sound like Lyndon are Landon, Lynton and London.