Long Éireannach
Long Éireannach (Irish for "Irish ship") is the designation given to ships in the Irish Naval Service's fleet. In this context it is abbreviated to LÉ, as in LÉ Eithne or LÉ Róisín.
It has been used since December 1946 when the Irish Naval Service was established with the purchase of three corvettes from the Royal Navy. The LÉ Macha was among the first vessels named with the LÉ prefix.