The Loo Sanction is a 1973 sequel novel to The Eiger Sanction written by Trevanian.
In London, England, Jonathan Hemlock is blackmailed into performing another "sanction", a top-secret political assassination.
Some critics derided The Loo Sanction and The Eiger Sanction as "pale James Bond derivatives" while Trevanian considered the books intentional Bond spoofs.