| Lasse Karjalainen | |
| Birth Date: | 22 October 1974 |
| Birth Place: | Botkyrka, Sweden |
| Position: | Defender |
| Youthyears1: | –1990 |
| Youthclubs1: | PPT Pori |
| Years1: | 1991–1994 |
| Years2: | 1995–2005 |
| Years3: | 2006 |
| Clubs1: | FC Jazz |
| Clubs2: | FC Haka |
| Clubs3: | FC PoPa |
| Caps1: | 62 |
| Caps2: | 240 |
| Caps3: | 24 |
| Goals1: | 0 |
| Goals2: | 11 |
| Goals3: | 4 |
| Totalcaps: | 326 |
| Totalgoals: | 5 |
| Nationalyears1: | 1994–2002 |
| Nationalcaps1: | 15 |
| Nationalgoals1: | 0 |
| Nationalteam1: | Finland |
Lasse Karjalainen (born 22 October 1974) is a Finnish former footballer. He was born in Sweden but spent most of his childhood at Pori, Finland.
Karjalainen played 14 seasons in the Finnish premier division Veikkausliiga for FC Jazz and FC Haka.[1] He capped 15 times for the Finland national team.[2] Karjalainen is the player with most Finnish Championship titles.
1993, 1995, 1998, 1999, 2000, 2004
1997, 2002, 2005
1995