Discovery Great Reef (Filipino: Bahura ng Paredes); Lớn Reef (Vietnamese: Đá Lớn); Mandarin Chinese: 大现礁; pinyin: Dàxiàn jiāo, is a reef on the Spratly Islands in the South China Sea. The reef has been occupied by Vietnam since 1988. It is also claimed by China (PRC), the Philippines, Vietnam, and Taiwan (ROC).

See also

• Spratly Islands dispute