Merri \m(er)-ri\ as a girl's name is a variant of Merry (Old English), and the meaning of Merri is "joyful, lighthearted".
The baby name Merri sounds like Merrie, Meera, Mera, Marra, Merah, Mari, Mairi, Meara, Meira, Merree, Mirra and Miri. Other similar baby names are Berri, Gerri, Jerri, Kerri, Merci, Merril, Perri and Terri.