|1.||2002||7-UP - Nutrafig||2||1215|
|2.||2003||7-UP - Maxxis||42||708|
|3.||2004||Health Net Pro Cycling Team p/b Maxxis||44||716|
|4.||2005||Health Net p/b Maxxis||71||573|
|5.||2006||Health Net p/b Maxxis||48||727|
|8.||2009||Team Columbia - HTC||306||196|
|9.||2010||Sky Professional Cycling Team||674||74|
|11.||2012||Lotto Belisol Team||196||337|
|16.||2017||Unitedhealthcare Professional Cycling Team||15||1200|
Gregory "Greg" Henderson (born 10 September 1976) is a professional track and road racing cyclist who rides for UnitedHealthcare. His career includes winning the 15 kilometres (9.3 mi) scratch race at the 2004 world championships and, in road cycling, winning the points competition at the 2005 Tour de Georgia. He repeated this feat in 2008. During an important part of his career, he served as André Greipel's main lead-out man, and they have been colleagues at both T-Mobile Team and later Lotto–Soudal.
In 2007, he rode for T-Mobile Team. Henderson received a Bachelor of Physical Education from the University of Otago.
In addition to 17 New Zealand track and road titles and eight World Cup track golds, Henderson has been New Zealand Track Cyclist of the Year (2001, 2002, 2003) and Athlete of the Year, Otago, New Zealand (2001, 2002, 2003).