Also used in Spanish. It is considered both a Spanish form of Dinah or a short form of names such as Bernardina or Claudina.There are 3,860 bearers of this name in Spain. (source: Instituto Nacional de Estadística). [noted -ed]
Dina is also used as a feminine name in Egypt. A famous American actress with this name is Dina Meyer. As a woman's name, I regard it as a nice, refined name.
I work as a reservationist for an airline. When I have a customer that has the same name, they usually are born in the 60's. When asked most say they were named after a popular actress of the time, most likely Dina Merrill. This could explain the sudden popularity at the time.
https://uk.m.wiktionary.org/wiki/%D0%94%D1%96%D0%BD%D0%B0
https://uk.m.wikipedia.org/wiki/%D0%94%D1%96%D0%BD%D0%B0
https://orfograf_ukr.academic.ru/39461/%D0%94%D1%96%D0%BD%D0%B0
https://zogo.info/znachennya-imeni-dina-ukraynskoyu-movoyu/
https://unian-ua.turbopages.org/turbo/unian.ua/s/lite/astrology/znachennya-imeni-diana-shcho-oznachaye-pohodzhennya-imeni-harakter-sumisnist-imeni-diana-11200211.html
https://uk.trendexmexico.com/duhovnoe-razvitie/28551-imya-dina-znachenie-harakteristika-tayna-imeni-dina.html
https://gufo.me/dict/ukru/%D0%94%D1%96%D0%BD%D0%B0 [noted -ed]