objectCenter
objectLayer 
objectType
objectTypeUI
objExists
obsoleteProc
oceanNurbsPreviewPlane
| offsetCurve
offsetCurveOnSurface
offsetSurface
ogs
ogsRender
openCLInfo
openGLExtension
| openMayaPref
optionMenu
optionMenuGrp
optionVar
orbit
orbitCtx
orientConstraint
| outlinerEditor
outlinerPanel
overrideModifier
|