| Mark H. Beaubien Jr. | |
| State House: | Illinois |
| State: | Illinois |
| District: | 52nd |
| Term Start: | October 22, 1996 |
| Term End: | June 5, 2011 |
| Preceded: | Al Salvi[1] |
| Succeeded: | Kent Gaffney[2] |
| Birth Date: | October 30, 1942 |
| Birth Place: | Waukegan, Illinois |
| Death Place: | Arlington Heights, Illinois |
| Spouse: | Dee Beaubien |
| Profession: | attorney |
| Party: | Republican |
| Alma Mater: | Northwestern University (BA, JD) |
Mark H. Beaubien Jr. (October 30, 1942 – June 5, 2011)[3] was a Republican member of the Illinois House of Representatives.[4] He represented the 52nd House district from 1996 to 2011, and prior to his death, served as Assistant Republican Leader.
He was a descendant of Mark Beaubien, the owner of Chicago's Sauganash Hotel.[5]