Wilhelm Ludwig Geiger (21 July 1856 – 2 September 1943) was a German Orientalist in the fields of Indo-Iranian languages and the history of Iran and Sri Lanka. He was known as a specialist in
Pali,
Sinhala language and the
Dhivehi language of the
Maldives. He is especially known for his work on the Sri Lankan chronicles
Mahāvaṃsa and
Cūlavaṃsa of which he made critical editions of the Pali text and English translations with the help of assistant translators.