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| Eight Great Dragon Kings | |
|---|---|
| Sanskrit | Sanskrit: अष्टनागराजाः, romanized: aṣṭa-nāga-rājah |
| Chinese | 八大龍王 (Bādà lóngwáng) |
| Japanese | 八大龍王 (Hachidai Ryūō) |
| Korean | 팔대룡왕 (paldaelyongwang) |
| Tibetan | Standard Tibetan: ཀླུའི་རྒྱལ་པོ་ཆེན་པོ་བརྒྱད་, romanized: klu'i rgyal po chen po brgyad |

The Eight Great Dragon Kings is a group of dragons in the Lotus Sutra.

This is the main order of the dragon kings
| Number | Name | Kanji | Hiragana | Romaji | Sanskrit (Devanagari) | Sanskrit (romanized) | Translation | Notes |
|---|---|---|---|---|---|---|---|---|
| 1 | Ānanda | 難陀 | なんだ | Nanda | आनंद | Ānanda | Joy | Nanda and Upananda are brother dragon kings who once fought against Shāgara. They are mentioned in the 16th chapter of the Amoghapasha Sutra. |
| 2 | Upananda | 跋難陀 | ばつなんだ | Batsunanda | उपनन्द | Upananda | Minor Joy | Nanda’s younger brother. He protected the Kingdom of Magadha and attended lectures by the Buddha.
Made it rain for the birth of the Buddha |
| 3 | Shāgara | 娑伽羅 | しゃがら | Shagara | सागर | Sāgara | Ocean | The dragon king of the sea palace. He is the father of the Dragon Princess Longnü.
A daughter named Seiryū Gongen followed Kukai back from China |
| 4 | Vasuki | 和修吉 | わしゅきつ | Washikitsu | वासुकि | Vāsuki | Treasure | Called Nine Headed Dragon King (九頭龍王, Kusu Ryūō) in Japan. Represents devotion to Buddhist principles.Also called Houyu (宝有) or Houshuu (宝称) literal translations of his name or Many-headed Dragon King (多頭龍王, Tatō Ryūō)
Guarder Mount Sumeru |
| 5 | Takshaka | 德叉迦 | とくしゃか | Tokushaka | तक्षक | Takṣaka | Many-tongued, poisonous to the eye. | He appears in the Mahabharata.
Father of Shichimen Tennyo |
| 6 | Anavatapta | 阿那婆達多 | あなばだった | Anabadatta | अनवतप्त | Anavatapta | Cool and Untroubled | Guardian of the mythological lake Anavatapta in the Himalayas.
Also known as Anokudātsu (阿耨達) |
| 7 | Manasvin | 摩那斯 | まなし | Manashi | मनस्विन | Manasvin | Great Body | He stopped Asura’s seawater attacks on Mount Sumeru. |
| 8 | Utpalaka | 優鉢羅 | うはつら | Uhatsura | उत्पल | Utpalaka | Blue Lotus |
The Japanese Shingon sect performed a rainmaking ritual called shōugyōhō. Some sources say It was first performed by Kūkai in the year 824 at Shinsen'en. The first well documented case was in 875, then a second time in 891. After that people started doing the ritual regularly.
The shōugyōhō ritual used two Dragon King mandalas.
The Great Mandala was dedicated to the Eight Dragon Kings. It had the Buddha in the center, with the Eight Dragon Kings around him. There were ten thousand lesser dragon kings too. People hung the Great Mandala on a wall.
The other Mandala had only five dragon kings. It came from a story in the Collected Dhāraṇī Sūtras. It was called a spread-out mandala (敷曼荼羅, shiki mandara). People put the lesser mandala on the floor.