Shadow Hills (originally Hansen Heights) is a neighborhood in the Verdugo Mountains and northeastern San Fernando Valley, within the city of Los Angeles, California.

Shadow Hills is in the northwestern Verdugo Mountains, near the western end of the Crescenta Valley. It is north of the city of Burbank and southeast of the Hansen Dam Reservoir.

It is adjacent to the communities of Lake View Terrace to the north, Sunland and Tujunga to the east, Sun Valley to the south, and Pacoima to the west. The area is primarily equestrian zoned, one of the last remaining such neighborhoods within the City of Los Angeles.

Shadow Hills is an acceptable city name for ZIP Code 91040, with Sunland the default city name assigned to 91040.

As of the 2000 census, Shadow Hills had a population of 3,739 people. The racial breakdown was 79% Caucasian, 14% Latino, 3% Asian American, and 1% African American.

In 2009, the Los Angeles Times's "Mapping L.A." project supplied these Shadow Hills neighborhood statistics: population: 13,098; median household income: $82,796.

The community began as Hansen Heights when it opened for a planned settlement at $150 an acre in 1907. Its first publicity was an article in The Los Angeles Record which announced a "public land meeting" in the Los Angeles Chamber of Commerce Building "with Stereoptican Pictures." Further promotional "illustrated lectures" about these "little farms" were held nightly.

In 1927, "Butterfly Gardens" was a six-acre plot "in the hills a little way off the main traveled road" owned by Mr. and Mrs. Albert Carter which were seeded to wildflowers in the expectation of attracting and "raising" butterflies. In the same year Frank Kenniston owned a grocery in Hansen Heights and also "one of the largest bee apiaries in this part of the country." Kenniston noted that Hansen Street was still unpaved and that owners of large tracts were unwilling to subdivide, "thus retarding development."