Alester \a-les-ter, al(e)-ster\ as a boy's name is a variant of Alastair (Greek), and the meaning of Alester is "man's defender".
The baby name Alester sounds like Alyster, Alister, Aleister and Alaster. Other similar baby names are Allyster, Allister, Allaster, Alistar, Alaister, Alastor, Alasteir, Alistir, Alsten, Alter and Lester.