Dan Arnold Killian (February 5, 1880 – January 15, 1953) was an American football and baseball coach.
He served as the head football coach at Louisiana State University (LSU) from 1904 to 1906, compiling a record of 8–6–2.
Killian was also the head coach of the LSU baseball team from 1905 to 1906, tallying a mark of 14–9 and head coach of the LSU Tigers track and field team from 1905 to 1906.
Killian was a graduate of the University of Michigan.
He died in Lansing, Michigan in 1953.