Petley Reef

{{Short description|Reef in the Spratly Islands}}

{{Infobox islands

| disputed = yes

| type = reef

| name = Petley Reef

| other_names =
Sinh Tồn Đông (Vietnamese)
Juan Luna Reef (Philippine English)
Bahura ng Juan Luna (Filipino)
舶兰礁 Bólán jiāo (Chinese)

| image_name = Petley Reef.png

| image_caption = Petley Reef

| pushpin_map = Spratly Islands relief

| location = South China Sea

| coordinates = {{coord|10|24|37|N|114|35|14|E||name=Petley Reef|display=inline,title}}

| archipelago = Spratly Islands

| country = {{VNM}}

| country_admin_divisions_title = District

| country_admin_divisions = Trường Sa District

| country_admin_divisions_title_2 = Commune

| country_admin_divisions_2 = Sinh Tồn Commune

| country1 = {{CHN}}

| country2 = {{PHL}}

| country3 = {{TWN}}

| country4 = {{VNM}}

}}

Petley Reef ({{langx|fil|Bahura ng Juan Luna}}); Núi Thị Reef ({{langx|vi|Đá Núi Thị}}); Mandarin {{zh|c= 舶兰礁|p=Bólán jiāo|s=|t=}}, is a reef on the northern part of the Tizard Bank of 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, and Taiwan.{{in lang|vi}}{{cite news |title=Gạc Ma - Trường Sa trong mắt một người Tiền Phong |url=https://tienphong.vn/gac-ma-truong-sa-trong-mat-mot-nguoi-tien-phong-post1422478.tpo |date=March 12, 2022 |accessdate=November 9, 2022}}{{cite book|author1=D. J. Hancox|author2=John Robert Victor Prescott|title=A Geographical Description of the Spratly Islands and an Account of Hydrographic Surveys Amongst Those Islands|url=https://books.google.com/books?id=7Qu9fi-luTYC&pg=PA8|year=1995|publisher=IBRU|isbn=978-1-897643-18-1|pages=8–}}{{Cite web |title=Petley Reef |url=https://cil.nus.edu.sg/south-china-sea-satellite-mapping-project/Tizard-Bank-Petley-Reef/ |access-date=30 November 2022 |website=cil.nus.edu.sg}}