Guillermo Portela y Möller (born November 1, 1886–1958) was a lawyer, law professor and member of the Pentarchy of 1933.

In the early 1930s, Portela spent two years in prison for defending student opponents of deposed President Gerardo Machado.

The university professor sought recovery in Hendersonville, North Carolina, during the winter of 1932 and stayed there for five months and a few weeks during the summer.

[4] As one of the five members of the Executive Commission of the Provisional Government of Cuba appointed on September 5, 1933, Portela served alongside José Irisarri, Porfirio Franca, Ramón Grau, and Sergio Carbó.

[8] In 1937, Portela founded the Orquesta Casino de la Playa in Havana, one of the first Cuban jazz bands.