Terelyn \t(e)-rel-yn, ter(e)-lyn\ as a girl's name is a variant of Teryl. See for origin and meaning of Terelyn.
The baby name Terelyn sounds like Terelynn and Teralyn. Other similar baby names are Jerelyn, Karelyn, Geralyn, Jeralyn, Jerilyn, Kerilyn, Marelyn, Merlyn, Taralyn, Teryn, Terryn, Terilynn, Terella and Terell.