Quercus championii
{{Short description|Species of oak tree}}
{{Speciesbox
| image = 黃背櫟 Quercus championii -香港西貢獅子會自然教育中心 Saikung, Hong Kong- (9219901913).jpg
| genus = Quercus
| display_parents = 2
| parent = Quercus sect. Cyclobalanopsis
| species = championii
| authority = Benth.
| synonyms_ref = [http://www.theplantlist.org/tpl1.1/record/kew-172109 The Plant List, Quercus championii Benth. ]
| synonyms = *Cyclobalanopsis championii (Benth.) Oerst.
| status = LC
| status_system = IUCN3.1
}}
Quercus championii is an uncommon species of tree in the family Fagaceae. It has been found only in southern China, in the Provinces of Fujian, Guangdong, Guangxi, Hainan, Taiwan, and Yunnan.[http://www.efloras.org/florataxon.aspx?flora_id=2&taxon_id=210000357 Flora of China, Cyclobalanopsis championii (Bentham) Oersted, 1867. 岭南青冈 ling nan qing gang ] It is placed in subgenus Cerris, section Cyclobalanopsis.{{Cite web |last1=Denk |first1=Thomas |last2=Grimm |first2=Guido W. |last3=Manos |first3=Paul S. |last4=Deng |first4=Min |last5=Hipp |first5=Andrew L. |date=2017 |title=Appendix 2.1: An updated infrageneric classification of the oaks |website=figshare |doi=10.6084/m9.figshare.5547622.v1 |url=https://figshare.com/articles/dataset/Appendix_2_1_________An_updated_infrageneric_classification_of_the_oaks/5547622/1 |access-date=2023-02-24 |format=xls |name-list-style=amp }}
Quercus championii is a tree up to 20 meters tall, with a trunk up to 100 cm in diameter, grayish-brown twigs, and leaves as much as 13 cm long.{{Cite journal|url=https://www.biodiversitylibrary.org/page/782927#page/119/mode/1up|author1=Bentham, George|year=1854|journal=Hooker's Journal of Botany and Kew Garden Miscellany|volume=6|pages=113–114|title=Florula Honkongensis: an Enumeration of the Plants collected in the Island of Hongkong by Major J. G. Champion, 95th Reg. }} description in Latin, commentary in English
It was described from material collected in Hong Kong by John George Champion.