| Lou Riley | |
| Fullname: | Louis Andrew Riley |
| Birth Date: | 7 September 1909 |
| Birth Place: | Granville, New South Wales |
| Originalteam: | Golden Point |
| Height: | 175 cm |
| Weight: | 72 kg |
| Position: | Half forward flank |
| Statsend: | 1938 |
| Years1: | 1932–1934 |
| Club1: | Melbourne |
| Games Goals1: | 20 (27) |
| Years2: | 1934–1938 |
| Club2: | Collingwood |
| Games Goals2: | 44 (60) |
| Games Goalstotal: | 64 (87) |
Louis Andrew Riley (7 September 1909 – 20 April 1989)[1] was an Australian rules footballer who played for Melbourne and Collingwood in the Victorian Football League (VFL) during the 1930s.
The youngest son of Alexander Riley (1873–1911) and Emily Caroline Riley, née Hele (1874–1963), Louis Andrew Riley was born at Granville, New South Wales in 1909. The family moved to Ballarat while Louis was an infant.
Riley, a half forward flanker, spent two and a half years playing at Melbourne before crossing to Collingwood during the 1934 season. He kicked a career high 38 goals in 1935 and finished the year in a premiership team. Another premiership followed in 1936 and he remained at Collingwood for a further two seasons before retiring.