Arnab is a masculine given name of Sanskrit origin, which means "pure" or "clear". It is particularly popular in India and among the Indian diaspora worldwide. The name Arnab has been traditionally used by Hindu families, often as a virtue name, reflecting its positive meaning. In recent years, it has also gained traction among other communities due to its unique sound and meaning.
The name Arnab experienced a noticeable increase in popularity starting from the year 2011, with six births recorded each in that year and again in 2014. Prior to this, the name was consistently popular but had fewer occurrences annually, ranging between five births per year from 1978 to 2002, with no notable fluctuations during these decades. Despite its recent surge in popularity, overall the name Arnab has seen a steady presence since the late 1970s, totaling 32 births across nearly four decades.