Varshevits (Warschawitz) (née Kogan, formerly Petrova) Luiza Zelmanovna (born 14 May 1946, Riga) – manicurist.

Luiza Varshavits received an eight-grade secondary education at Evening School No. 19 in Riga.

In 1964, she married Nikolai Petrov (b. 1945). Their son, Garri Petrov (b. 1965), was placed in the custody of his father following their divorce in 1972. That same year, she remarried Maris Varshevits (b. 1944), a musician.

From 1967, she worked as a manicurist at hairdressing salons under the Laimdota complex and at the Riga Dermatology and Venereology Dispensary. Between 1976 and 1978, she worked as an attendant at Riga Petrol Station No. 12.

In 1977, Luiza Varshavits relocated to Ontario, Canada, where she took over the management of a bakery.

Nikolai Petrov (b. 1945) – first husband
Maris Varshevits (b. 1944) – second husband
Zelman Kogan (b. 1918) – father
Raïsa Kogan (née Sausheva) (b. 1927) – mother
Garri Petrov (b. 1965) – son
Boris Kogan (b. 1954) – brother