| Nuno Fonseca | |
| Fullname: | Nuno Miguel de Magalhães Fonseca |
| Birth Date: | 30 January 1982 |
| Birth Place: | Guimarães, Portugal |
| Height: | 1.78 m |
| Position: | Attacking midfielder |
| Youthyears1: | 1991–1998 |
| Youthyears2: | 1998–1999 |
| Youthyears3: | 1999–2000 |
| Youthclubs1: | Vitória Guimarães |
| Youthclubs2: | Vizela |
| Youthclubs3: | Porto |
| Years1: | 2000–2002 |
| Years2: | 2003 |
| Years3: | 2003–2005 |
| Years4: | 2005–2008 |
| Years5: | 2006–2007 |
| Years6: | 2008 |
| Years7: | 2009 |
| Years8: | 2009–2011 |
| Years9: | 2011–2012 |
| Years10: | 2012–2013 |
| Clubs1: | Porto B |
| Clubs2: | União Lamas |
| Clubs3: | Braga B |
| Clubs4: | Moreirense |
| Clubs5: | → Famalicão (loan) |
| Clubs6: | Progresul |
| Clubs7: | Lokomotiv Mezdra |
| Clubs8: | Gondomar |
| Clubs9: | Interclube |
| Clubs10: | Oliveirense |
| Caps1: | 61 |
| Caps2: | 7 |
| Caps3: | 42 |
| Caps4: | 57 |
| Caps5: | 11 |
| Caps6: | 0 |
| Caps7: | 7 |
| Caps8: | 38 |
| Caps9: | ? |
| Caps10: | 23 |
| Totalcaps: | 246 |
| Goals1: | 13 |
| Goals2: | 1 |
| Goals3: | 7 |
| Goals4: | 9 |
| Goals5: | 2 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals8: | 4 |
| Goals9: | 2 |
| Goals10: | 0 |
| Totalgoals: | 38 |
Nuno Miguel de Magalhães Fonseca (born 30 January 1982 in Guimarães) is a Portuguese retired footballer who played as an attacking midfielder.
Earlier in his senior career, Fonseca was under contract to both FC Porto and S.C. Braga, but only represented its reserve sides. In 2005, he signed for Moreirense F.C. in the second division, suffering relegation at the end of the season.
After splitting the following years with Moreirense and F.C. Famalicão, Fonseca moved to Romania in June 2008, signing with AFC Progresul București in the second level. However, after a couple of months, he terminated his contract.
On 22 January of the following year, Fonseca joined PFC Lokomotiv Mezdra of Bulgaria on a three-year deal. He made his debut with his new club two days later, in a 6–0 friendly routing of FC Botev Krivodol, but appeared rarely throughout the campaign as the team finished in mid-table.
Fonseca returned home in the 2009 summer, signing with division three side Gondomar SC. After two seasons the 29-year-old moved abroad again, with G.D. Interclube in Angola.