Adam David Block (born 1973) is an American astrophotographer, astronomy researcher, writer and instructor.

Block grew up in Rhode Island and Georgia, moving west in 1991 to attend the University of Arizona.

After graduation, he was employed by the National Optical Astronomy Observatory for its public outreach program on Kitt Peak, which he did for nine years.

His images and techniques have been featured in Astronomy Magazine,[3][4] Sky & Telescope,[5][6] National Geographic, Scientific American and L'Astronomie.

[14] Block offers instruction in astrophotography and techniques of image processing, both through magazine articles[15] and personally through his online studios.