Darius A. Monsef IV (born September 26, 1981 in Honokaa, Hawaii) is an internet entrepreneur & philanthropist known most widely as the founder of the design community COLOURlovers and co-founder & board member of the All Hands Volunteers international charitable organization.

[6] After leaving Hawaii, Monsef lived in multiple cities across the United States including Portland, Oregon, Tucson, Arizona and Orlando, Florida.

[11] Convinced that color was a fascinating topic that could be explored more deeply by the collective power of the internet, Monsef launched the COLOURlovers site in December 2004.

[19] In late 2008, Monsef was recruited by Microsoft to head up building community around their Photosynth technology where he spent 10 months working inside of the Live Labs incubator in Bellevue, Washington.

[23] In April 2009, Monsef along with COLOURlovers co-founder Chris Williams launched FriendsCall.me as a service to help manage online social identities.

He joined a small group of backpacking volunteers in Bang Tao Village and stayed for 5 months to help manage the project as it grew.

[1] In April 2011, Monsef and his wife Kaili travelled to Leogane, Haiti to spend their Honeymoon working with the All Hands Volunteers' project based there.