| Fredy | |
| Fullname: | Frederico Emanuel Tavares Martins |
| Birth Date: | 14 August 1979 |
| Birth Place: | Estarreja, Portugal |
| Position: | Left back |
| Youthyears1: | 1991–1992 |
| Youthyears2: | 1992–1993 |
| Youthyears3: | 1993–1996 |
| Youthyears4: | 1996–1998 |
| Youthclubs1: | Estarreja |
| Youthclubs2: | Avanca |
| Youthclubs3: | Porto |
| Youthclubs4: | Paris Saint-Germain |
| Years1: | 1998–2002 |
| Years2: | 2001 |
| Years3: | 2002–2005 |
| Years4: | 2005–2006 |
| Years5: | 2007–2009 |
| Years6: | 2009 |
| Years7: | 2010 |
| Years8: | 2010–2011 |
| Clubs1: | Felgueiras |
| Clubs2: | → Mallorca B (loan) |
| Clubs3: | Académica |
| Clubs4: | Paços Ferreira |
| Clubs5: | CFR Cluj |
| Clubs6: | Alki Larnaca |
| Clubs7: | Gil Vicente |
| Clubs8: | Anadia |
| Caps1: | 106 |
| Caps2: | 3 |
| Caps3: | 69 |
| Caps4: | 41 |
| Caps5: | 6 |
| Caps6: | 0 |
| Caps7: | 8 |
| Caps8: | 5 |
| Totalcaps: | 238 |
| Goals1: | 0 |
| Goals2: | 0 |
| Goals3: | 3 |
| Goals4: | 1 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals8: | 0 |
| Totalgoals: | 4 |
| Nationalyears1: | 1996 |
| Nationalyears2: | 1998–1999 |
| Nationalyears3: | 2000–2002 |
| Nationalyears4: | 2003 |
| Nationalteam1: | Portugal U16 |
| Nationalteam2: | Portugal U20 |
| Nationalteam3: | Portugal U21 |
| Nationalteam4: | Portugal B |
| Nationalcaps1: | 11 |
| Nationalcaps2: | 16 |
| Nationalcaps3: | 15 |
| Nationalcaps4: | 1 |
| Nationalgoals1: | 0 |
| Nationalgoals2: | 0 |
| Nationalgoals3: | 0 |
| Nationalgoals4: | 0 |
Frederico Emanuel Tavares Martins (born 14 August 1979 in Estarreja, Aveiro District), known as Fredy, is a Portuguese former footballer who played mainly as a left back.