Rasiah Ranjith Leon (born 6 February 1968) is a Sri Lankan-Norwegian entrepreneur who, with Ratheesan Yoganathan and Baskaran Kandiah, is best known as the co-founder of Lebara Group where he still is a Director and one of the controlling shareholders.

Starting first part-time as a seller for the calling card company Telesenter Scandinavia, he rapidly raised to the position of Sales Director for Norway.

In 2001, he made friends with two other Tamil colleagues, Ratheesan Yoganathan and Baskaran Kandiah, who eventually became his business partners creating Lebara Group.

In 2001, Rasiah Leon, Baskaran Kandiah and Ratheesan Yoganathan founded the Lebara Group, a company which they still own and operate successfully.

Rasiah Ranjith Leon, along with co-founders Ratheesan Yoganathan and Baskaran Kandiah started Lebara Foundation, a charitable venture in 2005, formally established in 2008.