| Clayton | |
| Fullname: | Clayton Michel Afonso |
| Height: | 1.94 m |
| Birth Date: | 1988 7, df=yes |
| Birth Place: | Brasília, Brazil |
| Currentclub: | Hillingdon Borough |
| Position: | Centre back |
| Years1: | 2008–2009 |
| Clubs1: | Londrina |
| Years2: | 2009 |
| Clubs2: | Shizuoka |
| Years3: | 2010 |
| Clubs3: | Unsommet |
| Years4: | 2010–2013 |
| Clubs4: | Tai Po |
| Caps4: | 52 |
| Goals4: | 4 |
| Years5: | 2013–2022 |
| Clubs5: | Eastern |
| Caps5: | 76 |
| Goals5: | 12 |
| Years6: | 2014–2015 |
| Clubs6: | → Tai Po (loan) |
| Caps6: | 12 |
| Goals6: | 0 |
| Years7: | 2015 |
| Clubs7: | → Metro Gallery (loan) |
| Caps7: | 6 |
| Goals7: | 1 |
| Years8: | 2016–2017 |
| Clubs8: | → Rangers (HKG) (loan) |
| Caps8: | 23 |
| Goals8: | 4 |
| Years9: | 2022–2024 |
| Caps9: | 0 |
| Goals9: | 0 |
| Years10: | 2024– |
| Caps10: | 0 |
| Goals10: | 0 |
| Nationalyears1: | 2021 |
| Nationalcaps1: | 1 |
| Nationalgoals1: | 0 |
| Pcupdate: | 4 October 2022 |
| Ntupdate: | 15 June 2021 |
Clayton Michel Afonso (born 18 July 1988), commonly known simply as Clayton, is a former Brazilian-born Hong Kong professional footballer who currently plays for Hillingdon Borough.
On 31 May 2022, Clayton left Eastern after finishing his contract with the club.
Having stayed in Hong Kong for more than seven years, Clayton received his Hong Kong passport in 2017, making him eligible to represent the national team.
On 17 May 2021, Clayton was named within the 25-man squad by Mixu Paatelainen for the AFC World Cup qualifiers against Iran, Iraq and Bahrain.
On 15 June 2021, Clayton made his international debut for Hong Kong in the match against Bahrain in the AFC World Cup Qualifiers.