Maciej Piaszczyński (born 28 May 1989 in Pleszew, Poland^[1]) is a former international motorcycle speedway rider from Poland.^[2]

Piaszczyński has represented Poland U-21 national team.

• Individual U-21 World Championship:
  • 2007 - 11th place (4 pts) in Qualifying Round 4
  • 2009 - Lost in Domestic Qualifications
• Team U-21 World Championship:
  • 2007 - 10 points in Qualifying Round

• Individual U-19 European Championship:
  • 2007 - Częstochowa - 16th place (1 pt)

• Individual Polish Championship
  • 2008 - 10th place in Quarter-Final 3
  • 2009 - 16th place in Quarter-Final 2
• Individual U-21 Polish Championship:
  • 2007 - 6th place
  • 2008 - 12th in Semi-Final 1
  • 2009 - 10th place in Qualifying Round 2
• Team Polish Championship (Polish League):
  • 2006 with PSŻ Milion Team Poznań in 3rd division - CMA 6.71
  • 2007 with PSŻ Milion Team Poznań 5th place in 2nd division - CMA 5.75
• Polish Silver Helmet (U-21):
  • 2007 - Rybnik - 4th place
  • 2008 - 10th place in Semi-Final 2
  • 2009 - Częstochowa - 16th place (1 pt)
• Polish Bronze Helmet (U-19):
  • 2006 - Opole - 7th place
  • 2007 - Gorzów Wlkp. - 15th place
  • 2008 - Gdańsk - 16th place (3 pts)
• U-21 Individual Championship of Greater Poland:
  • 2005 - 2nd place
  • 2006 - 5th place
  • 2007 - 2nd place
• U-21 Team Championship of Greater Poland:
  • 2005 - Champion
  • 2007 - Champion

• Poland national speedway team