| Title, Format | Label | Cat# | Country | Year | |
|---|---|---|---|---|---|
| I Think We're Alone Now (7", Single) | MCA Records | 258 169-7 | Germany | 1987 | |
| I Think We're Alone Now (12") | MCA Records | MCA-23793 | US | 1987 | |
| I Think We're Alone Now (12") | MCA Records | 258 168-0 | Germany | 1987 | |
| I Think We're Alone Now (12") | MCA Records | MCAT 1211 | UK | 1987 | |
| I Think We're Alone Now (7") | MCA Records | MCA-53167 | US | 1987 | |
| I Think We're Alone Now (7", Single) | MCA Records Ltd. | MCA 1211 | UK | 1987 | |
| I Think We're Alone Now (7", Single) | MCA Records | 258 169-7 | France | 1987 | |
| I Think We're Alone Now (CD, Maxi) | MCA Records Ltd. | DMCA 1211 | UK | 1987 | |
| I Think We're Alone Now (CD, Mini) | Warner-Pioneer Corporation | 10SW-14 | Japan | 1987 |