Leo Peter Kierkels (1882–1957) was a Catholic archbishop and diplomat of the Holy See.
Kierkels was born in Baexem, Netherlands on 12 December 1882.
He was appointed Apostolic Delegate to India and Titular Archbishop of Salamis on 23 March 1931.
On 26 April 1931, he was ordained a bishop by Cardinal Willem Marinus van Rossum, while the co-consecrators were Archbishop Pietro Pisani, who had himself been the Apostolic Delegate to India from 1919 to 1924, and Bishop Giovanni Battista Peruzzo.
He resigned as Apostolic Internuncio on 29 June 1952, having served as the papal representative to India for 21 years.