While there is not official designation for the regions that comprise Greater Los Angeles, one authority, the Los Angeles Times, divides the area into the following regions:
Angeles Forest
Antelope Valley
Central L.A. (Downtown Los Angeles, Hollywood, etc.)

Eastside
Harbor (see Gateway Cities)
Northeast L.A. (Highland Park, Eagle Rock, etc.)

Northwest County (including the Santa Clarita Valley)
Pomona Valley
San Fernando Valley
San Gabriel Valley
Santa Monica Mountains (Malibu, Topanga, etc.)

South Bay
South Los Angeles
Southeast Los Angeles County (including Norwalk and Whittier, see Gateway Cities)
The Verdugos (including Glendale, Pasadena and the Crescenta Valley)
Westside
Regions in adjacent counties include:
Orange County
Inland Empire
Conejo Valley
Oxnard Plain
High Desert (includes Antelope Valley, Victor Valley and Morongo Basin)
Low Desert (Coachella Valley)
While there is not official designation for the regions that comprise Greater Los Angeles, one authority, the Los Angeles Times, divides the area into the following regions:
Angeles Forest
Antelope Valley
Central L.A. (Downtown Los Angeles, Hollywood, etc.)
Eastside
Harbor (see Gateway Cities)
Northeast L.A. (Highland Park, Eagle Rock, etc.)
Northwest County (including the Santa Clarita Valley)
Pomona Valley
San Fernando Valley
San Gabriel Valley
Santa Monica Mountains (Malibu, Topanga, etc.)
South Bay
South Los Angeles
Southeast Los Angeles County (including Norwalk and Whittier, see Gateway Cities)
The Verdugos (including Glendale, Pasadena and the Crescenta Valley)
Westside
Regions in adjacent counties include:
Orange County
Inland Empire
Conejo Valley
Oxnard Plain
High Desert (includes Antelope Valley, Victor Valley and Morongo Basin)
Low Desert (Coachella Valley)
Greater Los Angeles