Bernado Lassaletta Perrín (20 August 1882 - 12 March 1948) was a Spanish industrial engineer, professor and footballer who played as a forward for FC Barcelona between 1901 and 1903.

[2] In 1910 he become the head of the testing laboratory of the company Siemens Schuckert Indústria Elèctrica SA in Catalonia.

In 1921, Lassaletta joined the Barcelona Academy of Sciences and Arts [es] as a full academician, and there he presented numerous papers and works.

[1][3][4] Together with the likes of Joan Gamper, Luis de Ossó, Udo Steinberg, and Carles Comamala, he helped Barça win the Copa Barcelona, netting a total of 5 goals in the tournament that was later recognized as the fourth edition of the Catalan Championship.

[6][7][8] On 6 March 1923, Einstein was nominated as a corresponding member of the physical sciences section of the Academy by Lassaleta, the mathematician Ferran Tallada, and the physicists Ramon Jardí and Tomas Escriche i Mieg, in a ceremony at the Barcelona's Academy of Sciences and Arts.