Alfredo Lalanne (born 3 March 1983 in Buenos Aires) is an Argentine scrum-half who plays for London Scottish in the Aviva Championship.

Lalanne was born in Buenos Aires, where he attended the Los Molinos School.

He played at all age levels for Argentina and made lasting friendships with Tomás de Vedia, Gonzalo Tiesi and Juan Manuel Leguizamón, players who preceded him at London Irish.

He was also his country's number one choice as scrum-half in the IRB Nations Cup in Bucharest in 2007, where the Argentina Jaguars made it to the final only to lose to the Emerging Springboks.

This biographical article relating to Argentine rugby union is a stub.