Borkum Leonid Samuilovich (born 1953, Riga) – turner.

In 1968, Leonid Borkum graduated from Riga Eight-Year School No. 34. Son of Samuil Borkum (b. 1915, Riga – d. 1966, Riga) and Etiya Borkum (née Lipshits) (b. 1914, Ventspils). From 1969, he worked as a turner at the Orbita Design Bureau.

In 1971, Leonid Borkum received permission to emigrate to Israel.

Samuil Borkum (1915–1966) – father
Etiya Borkum (née Lipshits) (b. 1914) – mother
Felina Borkum (b. 1947, Riga) – sister