Mer is a shortening of the name Mercy (English).
Mer is also a shortening of the name Meryl (English and Welsh).
Mer is not often used as a baby girl name. It is listed outside of the top 1000. Out of the family of girl names directly related to Mer, Mercy was the most popular in 2018.
Baby names that sound like Mer include Mair (English, Gaelic, and Welsh), Mar (Spanish), Mare (Irish and Latvian), Maure (English), Meinir (Welsh), Mere (Maori), Mir (Russian), Mirembe, Moir, Mor, More, Moyre, Mór (Irish and Scottish), Muire (Irish and Scottish), Maarii, Maarja (Estonian), Maeri, Maharai, Mahir, and Mahire.
† English pronunciation for Mer: M as in "me (M.IY)" ; EH as in "ebb (EH.B)" ; R as in "race (R.EY.S)"