Kelsie \k(e)-lsie, kel-sie\ as a girl's name (also used as boy's name Kelsie), is a variant of Kelsey (Old English), and the meaning of Kelsie is "victorious ship".
The baby name Kelsie sounds like Kelsi, Kelsee, Kellsie and Kelcie. Other similar baby names are Kellie, Kessie and Nelsie.