A picture of the noted British actress with a pink background features in the middle of the Google logo.
The 'Breakfast at Tiffany's' star and fashion icon became a big screen legend during Hollywood's so-called 'Golden Age.'
She was born on May 4, 1929 in Brussels to a British father and Dutch aristocrat mother, before moving to London in 1948 to continue training as a ballet dancer.
Widely considered to be the world's most beautiful women ever, Hepburn rose to film stardom after appearing in several British movies.
She won an Oscar, a Golden Globe and a BAFTA for her lead role in 'Roman Holiday' and starred in other classics, including 'Breakfast at Tiffany's' and 'My Fair Lady'.
She won a record three BAFTA awards for best British actress in a leading role.
Hepburn appeared in fewer acting roles in later life, devoting much of her time to working with UNICEF on good causes in the developing world.
She died in Switzerland aged 63 in 1993 after a battle with cancer.