Bernardina Maria "Berny" Boxem-Lenferink (née Lenferink; 12 May 1948 – 12 April 2023), was a Dutch middle-distance runner.

She competed at the 1972 Summer Olympics in the 1500 metres event and finished in ninth place.

In 1968, she competed in her first national championships, in the 800 m, and finished behind Ans, who won the bronze medal.

[2][3] On 23 December 1970, Lenferinke married Leo Boxem and changed her last name to Boxem-Lenferink.

She retired from athletics shortly after the 1972 Olympics, aged 24, due to lack of motivation.