| Alain Portmann | |
| Birth Date: | 1981 2, df=y |
| Birth Place: | Switzerland |
| Height: | 1.830NaN0 |
| Currentclub: | FC Breitenrain |
| Position: | Goalkeeper |
| Years1: | 2000–2001 |
| Years2: | 2001–2003 |
| Years3: | 2003–2004 |
| Years4: | 2004–2008 |
| Years5: | 2008 |
| Years6: | 2009 |
| Clubs6: | FC Breitenrain |
| Caps1: | 28 |
| Caps2: | 50 |
| Caps3: | 21 |
| Caps4: | 31 |
| Caps5: | 9 |
| Goals1: | 0 |
| Goals2: | 0 |
| Goals3: | 0 |
| Goals4: | 0 |
| Goals5: | 0 |
| Nationalyears1: | ?–2004 |
| Nationalteam1: | Switzerland U21 |
| Pcupdate: | 14 May 2008 |
Alain Portmann (born 14 February 1981) is a Swiss football goalkeeper, who currently plays for FC Breitenrain (as of 2009–10 season).
He won promotion to Swiss Super League with SR Delémont in 2002.