Over the past decade the use of Langmuir monolayers as ordered two-dimensional templates for oriented crystallization of inorganic and organic substrates has been clearly demonstrated. Surprisingly no kinetic studies of nucleation in such systems have been reported, although it has been assumed that such templates reduce the activation energy for nucleation. Accordingly, this paper constitutes the first kinetic measurements to have been made and uses the nucleation of ice from water under an alcohol monolayer as the system for study.