namesake

n. one named in memory of another; one with same name as another

For the book and the movie with the same title, refer to The Namesake. If a person, place, or thing is named after a different person, place, or thing, then one is said to be the namesake of the other. Using a namesake's name is a relatively common practice in naming children, hence the large number of "Jr.", "III", etc. Names are often used in tribute to older, related persons, such as grandparents.
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Noun
1. a person with the same name as another
(hypernym) person, individual, someone, somebody, mortal, human, soul

(n.)
One that has the same name as another; especially, one called after, or named out of regard to, another.
  

n.
ہم نام, ہم اسم