Aatri, Chandratre / Krishnatre (or Krishnatreya) are Indian surnames.

Atri Gotra is from the lineage of Brahmarshi

Brahmarshi

In Hinduism, a Brahmarshi is a member of the highest class of Rishis , especially those credited with the composition of the hymns collected in the Rigveda....

 Atri

Atri

This article is about the sage named Attri. See also the gotra named Atri. For the Italian city, see Atri, AbruzzoIn Hinduism, Attri or Atri is a legendary bard and scholar and was one of 9 Prajapatis, and a son of Brahma, said to be ancestor of some Brahmin, Prajapatis, kshatriya and Vaishya...

 and Anusuya Devi. Brahmarshi Atri is the seer of the fifth mandala (book) of the Rigveda

Rigveda

The Rigveda is an ancient Indian sacred collection of Vedic Sanskrit hymns...

. He had many sons, including Soma, Datta, and Durvasa, who are the incarnations of the Divine Trinity, Brahma

Brahma

Brahma is the Hindu god of creation and one of the Trimurti, the others being Vishnu and Shiva. According to the Brahma Purana, he is the father of Mānu, and from Mānu all human beings are descended. In the Ramayana and the...

, Vishnu

Vishnu

Vishnu is the Supreme god in the Vaishnavite tradition of Hinduism. Smarta followers of Adi Shankara, among others, venerate Vishnu as one of the five primary forms of God....

, and Rudra

Rudra

' is a Rigvedic God, associated with wind or storm, and the hunt. The name has been translated as "The Roarer", or "The Howler"....

. The trimurti

Trimurti

The Trimurti is a concept in Hinduism "in which the cosmic functions of creation, maintenance, and destruction are personified by the forms of Brahmā the creator, Vishnu the maintainer or preserver, and Śhiva the destroyer or transformer," These three deities have been called "the Hindu triad" or...

 channeled through Brahmarsi Atri when they granted boons to his wife Devi Anusuya for helping the Sun to rise in the east everyday. Soma is called Chandratreya or Chandratre, and Durvasa is Krishnatreya or Krishnatre. Somatreya (Chandra) established the Someshwara Jyotirlinga, used to overcome all kinds of passion. Soma, as the incarnation of Brahma, has the power to cause any species to continue.

Chandratre is the Surname which is used by Brahmin Families, who are among lineage of Atri Rishi. Chandratre families can be found in North India

India

India , officially the Republic of India , is a country in South Asia. It is the seventh-largest country by geographical area, the second-most populous country with over 1.2 billion people, and the most populous democracy in the world...

, Orrisa, Maharashtra

Maharashtra

Maharashtra is a state located in India. It is the second most populous after Uttar Pradesh and third largest state by area in India...

/in Maharashtra at Bhamer,Satana & orhar places / and in West Bengal

West Bengal

West Bengal is a state in the eastern region of India and is the nation's fourth-most populous. It is also the seventh-most populous sub-national entity in the world, with over 91 million inhabitants. A major agricultural producer, West Bengal is the sixth-largest contributor to India's GDP...

. Their Gotra

Gotra

In the Hindu society, the term Gotra broadly refers to people who are descendants in an unbroken male line from a common male ancestor. Panini defines gotra for grammatical purposes as apatyam pautraprabhrti gotram , which means "the word gotra denotes the progeny beginning with the son's son"...

is also Chandratre or Chandratreya
Chandratre gotra have THREE(3) Pravara's (1)Atri(2)Gavishtha(3)Purvatithya.and thear are no Problem matching the To the other Gotras in Marraeges to tally other gotra.