| Hélder Muianga | |
| Fullname: | Hélder Carlos Muianga |
| Birth Date: | 28 September 1976 |
| Birth Place: | Maputo, Mozambique |
| Position: | Defender |
| Years1: | 1994–1999 |
| Years2: | 1999–2002 |
| Years3: | 2002–2003 |
| Years4: | 2003 |
| Years5: | 2003–2004 |
| Years6: | 2004 |
| Years7: | 2004–2005 |
| Years8: | 2005–2008 |
| Clubs8: | Jomo Cosmos |
| Caps1: | 134 |
| Caps2: | 66 |
| Caps3: | 16 |
| Caps4: | 0 |
| Caps5: | 22 |
| Caps6: | 0 |
| Caps7: | 3 |
| Caps8: | 7 |
| Goals1: | 7 |
| Goals2: | 6 |
| Goals3: | 6 |
| Goals4: | 0 |
| Goals5: | 0 |
| Goals6: | 0 |
| Goals7: | 0 |
| Goals8: | 0 |
| Nationalyears1: | 1997–2004 |
| Nationalteam1: | Mozambique |
| Nationalcaps1: | 30 |
| Nationalgoals1: | 0 |
Hélder Carlos Muianga (born 28 September 1976), commonly known as Mano-Mano, is a Mozambican retired footballer who played in Mozambique for Costa do Sol and Desportivo de Maputo, in South Africa for Manning Rangers, Black Leopards, Dynamos FC and Jomo Cosmos, and in Hungary for Budapest Honvéd. Muianga also won 30 caps for the Mozambican national side between 1997 and 2004.
After retiring as a player in 2008, Muianga joined the Jomo Cosmos coaching technical team.[1] The Federação Moçambicana de Futebol (FMF) terminated its contract with Dutch selector coach Mart Nooij in September 2011 after the national team failed to qualify for the African Cup, but Hélder Muianga e João Chissano were retained.[2]