Alba Lucía Riquelme Valenzuela (born February 5, 1991) is a Paraguayan model and beauty pageant titleholder who was crowned Miss Universo Paraguay 2011 and represented her country in the 2011 Miss Universe pageant.
She was chosen as a finalist for the Miss Hawaiian Tropic 2009 in Punta del Este, Uruguay.
Also in 2009, she participated at the Yanbal Fashion Week, in Ecuador, it was the second time that the CN Models International Search 2009 were held and it was won by Alba.
In May 2010, she represented Paraguay at the Miss Beauty of the World 2010 held in People's Republic of China, she was among the Top 10 finalists.
In 2011, she participated at the Reinas Paraguayas del Bicentenario 2011 contest, it was held in Asuncion, on 23 June 2011.