Nyānadassana Mahāthera
Greece·Theravāda·Male·20th century
Bhikkhu Nyānadassana Mahāthera is a Theravāda Buddhist monk, scholar, and teacher of Greek origin, born Ioannis Tselios in 1959. He is known for his extensive study and teaching of the Pali Canon, meditation practices, and his significant role in the Paliverse Project, an AI-assisted initiative to translate the complete Pali Canon into English.
Key Facts
- ›Born Ioannis Tselios in Serres, Greece, in 1959.
- ›Received novice ordination in Sri Lanka in 1982 and full ordination as a bhikkhu in 1986.
- ›Studied Pali, the Tipiṭaka, and commentarial literature for sixteen years at Gnānārāma Dharmāyatanaya monastery.
- ›Earned the title of Vinayācariya (Teacher of Monastic Discipline) in 1997.
- ›Spent over three years training in meditation at the Pa-Auk Meditation Centre in Myanmar.
- ›Served as the primary spiritual inspiration for the Paliverse Project, aiming for a complete English translation of the Pali Canon.

Important Relationships
- Kaḍaveddūve Shrī Jinavaṁsa Mahāthera
- Michail Xynos
- Paliverse Project
- Wisdom and the Seventy-Three Kinds of Mundane and Supramundane Knowledge
- KaraṇīYa Metta-Sutta — the Message of Peace and Universal Friendliness
- Ratana Sutta — the Buddha's Discourse On the Three Superb Jewels and Their Intrinsic Power
- When Is Dawn ? When Is Dawnrise ?
- Mode of Veneration of the Buddha
- Bhikkhu-PāTimokkha — Das Hauptregelwerk Der Buddhistischen MöNche
- Meditation: Liberation Or Attachment
- the Historical Buddha and His Teaching
- διαλογισμός: απελευθέρωση ή προσκόλληση
- ο ιστορικός βούδας και η διδασκαλία του
- KaraṇīYa Metta-Sutta — το μήνυμα της ειρήνης και της παγκόσμιας φιλικότητας
- αυτά που ο βούδας δίδαξε
- Dhammapada, η σοφή διδασκαλία του βούδα σε στίχους
Sri Lanka, Myanmar, Singapore, Indonesia, Malaysia, Taiwan, Greece
Pa-Auk Sayadaw, Venerable MāTara Sri ñāṇāRāMa MahāThera, Buddhadatta MahāThera
English, German, Greek, Sinhala, Pali
SāMaṇEra, Bhikkhu
About Nyānadassana Mahāthera
Bhikkhu Nyānadassana Mahāthera
Bhikkhu Nyānadassana Mahāthera, born Ioannis Tselios in 1959 in Serres, Greece, is a prominent Theravāda Buddhist monk, scholar, and teacher. He is widely recognized for his dedication to the study and practice of Buddhist teachings, particularly the Pali Canon and meditation.
Early Life and Education
Ioannis Tselios was born in Karperi, Serres, and completed his high school education in Thessaloniki. He pursued sociology studies at Goethe University in Frankfurt, Germany, for two years before traveling extensively in South Asia during the 1980s, visiting significant Buddhist sites in India and Sri Lanka.
Monastic Life and Scholarship
In 1982, Tselios received novice ordination in Sri Lanka and was given the monastic name Nyānadassana, meaning "knowledge and vision." He underwent full ordination as a bhikkhu in 1986. For sixteen years, he immersed himself in the study of Pali, the Tipiṭaka, and Buddhist commentarial literature at the Gnānārāma Dharmāyatanaya monastery. In 1997, he earned the title of Vinayācariya, signifying mastery in monastic discipline, and subsequently began teaching the Pali language and the Tipiṭaka.
Meditation and International Teaching
Nyānadassana Mahāthera has devoted decades to intensive meditative practices, including Vipassanā and Samatha. He practiced at Nissaraṇa Vanaya in Mītirigala and spent over three years training at the Pa-Auk Meditation Centre in Myanmar under Pa-Auk Sayadaw. Between 2008 and 2018, he was a frequent invited speaker at Buddhist centers across Singapore, Indonesia, Malaysia, and Taiwan, leading Dhamma talks and meditation classes. He resided at Nā Uyana Forest Monastery in Sri Lanka from 2011 to 2019.
Return to Greece and PaliVerse Project
In 2019, Nyānadassana Mahāthera returned to Greece to teach Theravāda Buddhism, conducting extensive courses and meditation seminars for diverse international audiences. During this period, he authored several books. He also served as the primary spiritual inspiration for the PaliVerse Project, initiated in 2024. This ambitious AI-assisted initiative aims to produce the first complete English translation of the Pali Canon, a corpus of approximately ten million words, building upon his foundational work in Pali terminology and translation methodology.
Publications
Bhikkhu Nyānadassana Mahāthera has authored and translated numerous works in English, German, Greek, and Sinhala. His publications cover a range of Buddhist topics, including meditation, philosophy, and canonical texts.
Source: Wikipedia ↗
Frequently Asked Questions
Who is Bhikkhu Nyānadassana Mahāthera?
Bhikkhu Nyānadassana Mahāthera, born Ioannis Tselios, is a Theravāda Buddhist monk, scholar, and teacher from Greece. He was born in 1959 and is recognized for his contributions to Buddhist studies and practice.
What is Bhikkhu Nyānadassana Mahāthera known for?
He is known for his deep engagement with the Theravāda tradition, including extensive study and teaching of the Pali Canon and meditation practices like Vipassanā and Samatha. He also played a key role in the PaliVerse Project.
Where did Bhikkhu Nyānadassana Mahāthera receive his monastic training?
He received his novice ordination in Sri Lanka in 1982 and his full ordination as a bhikkhu in 1986. He studied for sixteen years at Gnānārāma Dharmāyatanaya monastery and trained in meditation at the Pa-Auk Meditation Centre in Myanmar.
What is the PaliVerse Project?
The PaliVerse Project, for which Nyānadassana Mahāthera was a spiritual inspiration, is an AI-assisted initiative launched in 2024. Its goal is to produce the first complete English translation of the vast Pali Canon, including the Tipiṭaka and its extensive commentaries.
What are some of Bhikkhu Nyānadassana Mahāthera's notable publications?
His publications include works such as 'Wisdom and the Seventy-Three Kinds of Mundane and Supramundane Knowledge' (2003), 'Karaṇīya Metta-sutta — The Message of Peace and Universal Friendliness' (2010), and 'Meditation: Liberation or Attachment' (2025). He has also authored and translated works in German and Greek.
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