In the Welsh origin, Meighan means "Meighan \me(i)-ghan\ as a girl's name is a variant of Megan (Welsh). See for meaning of Meighan.
The baby name Meighan sounds like Minna, Mina, Meena, Min, Mena, Miyana and Moina. Other similar baby names are Meghan, Meeghan and Meaghan."