| Garrett Lisi |
Physicist |
TED2008 |
| Dennis Littky |
Co-founder & Co-Director, Big Picture Learning |
PopTech 2009, BIF-4, BIF-1 |
| David Liu |
Managing Director in the Media Investment Banking Group, Jeffries |
DLD 2010 |
| John Lloyd |
Television producer |
TEDGlobal 2009 |
| Ryan Lobo |
Photographer |
TEDIndia |
| Matt Locke |
Commissioning Editor, Channel 4 Education |
PICNIC '09, PICNIC '06 |
| James Lockyer |
Defence attorney |
ideaCity 2004 |
| David Logan |
Founder and senior partner, CultureSync |
TEDxUSC 2009 |
| Derek Lomas |
Founder, Playpower Foundation |
PopTech 2009 |
| Bjorn Lomborg |
Political scientist |
TED2005 |
| Kati London |
Vice President & Senior Producer, Area/Code |
PICNIC '09, DLD 2008 |
| Philip Longman |
Demographer |
Poptech 2004 |
| Jack Lord |
President & CEO, Navigenics |
TEDMED2009 |
| Marie Lorenz |
Sculptor, boat builder |
Gel 2007 |
| Catherine Lottier |
Program Prospective Specialist, Canal plus |
Lift10 |
| Beau Lotto |
Founder, Lottolab |
TEDGlobal 2009 |
| Ross Lovegrove |
Designer |
DLD 2009, TED2005 |
| Amory Lovins |
Chairman, Rocky Mountain Institute |
TEDxOilSpill, EG08, TED2005 |
| Philip Low |
Founder, Chairman & CEO, NeuroVigil Inc. |
TEDMED2009 |
| Juan Lozano |
Politician & former lawyer |
ideaCity 2001 |