Philip "Flip" Slier (4 December 1923 – 9 April 1943) was a Dutch typesetter of Jewish origin who lived in Amsterdam during the German occupation of the Netherlands in World War II.

At the age of 18, he received a letter from the Jewish Council of Amsterdam—under orders from the German occupiers—that he was to report to Camp Molengoot or face arrest.

On 3 March 1943, before he could escape to Switzerland, he was apprehended by the Schutzstaffel (SS) at the Amsterdam Centraal railway station for not wearing a yellow star badge indicating that he was a Jew.

[1] The Germans in occupied Netherlands ordered that all Jews over the age of six had to wear a six pointed yellow star symbol on their outer clothing, for easy identification, to be the size of a saucer.

[2] He was transported to Vught concentration camp, North Brabant, in the south of the Netherlands.