María Clara Sosa Perdomo (born 25 September 1993) is a Paraguayan model, tv host and beauty queen who was crowned Miss Grand Paraguay 2018 and was later crowned Miss Grand International 2018 in Yangon, Myanmar.

She is a model at ON Management and also a host at the morning show La mañana de Unicanal.

[4][5] In 2015, Sosa joined and finished in the Top 20 semifinalist at Miss Model of the World 2015 competition.

On 9 June 2018, Sosa was crowned as Miss Grand Paraguay 2018 held its finale night at the Hotel Guarani Theatre.

She succeeded outgoing Miss Grand Paraguay 2017, Lia Duarte Ashmore.