What is David Letterman's religion?

Answer 1

After the scandal, David told the LA Times he is Lutheran.

Answer 2

In October 2009, Letterman mentioned on the air, that he was a mess of Midwest and Lutheran guilt. Although, in his childhood, his mother worked as a secretary at a Presbyterian Church.

Answer 3

There is no real definitive answer for this question. However, when Dave was young, his mother worked as a church secretary at the Second Presbyterian Church. From this information, we can only assume that Dave was raised Presbyterian, although we have no real proof of this.