Last name Садхана (Sadhana 
, Садхана 
) , worldwide, is quite a rare cognomen. The surname Садхана is habitual in Sri Lanka, where it is quite a rare surname, Oman, where it is a rare surname, and India. Measured by absolute frequency, the name is most common in India, Indonesia, and Sri Lanka. Predominantly, Садхана is the forename as well as the last name.