Rilletta \r(il)-letta, rill(et)-ta\ as a girl's name is a variant of Rilla (German), and the meaning of Rilletta is "small brook".
The baby name Rilletta sounds like Rillette. Other similar baby names are Willetta, Elletta, Alletta, Giuletta, Rozletta, Salletta, Valletta, Villette, Violletta, Violetta and Willette.