石坚（1913年1月1日－2009年6月3日），原名石荣璋，籍贯广东番禺石岗村，香港粤语电影演员，电影、电视作品无数。另有外号奸人坚，是粤语电影中的老牌反派，经常都在黄飞鸿电影里担任反派的角色。

　　石坚从小被二妈养大，少年时体弱多病，故习武以强身健体，一学九年，习鹰爪、螳螂、罗汉、少林、山西朝元派和保定快跤等门派功夫，因此建立起功夫底子，为日后的演艺生涯竖立基础。适逢抗日战争爆发，学生时期的石坚积极投入罢课抗战，联袂友人筹划抗日话剧，纵横省港两地演出。除担纲演员外，他更担当幕后工作，期间更学习舞台化妆及布景灯光等，自此建立对演艺事业的兴趣。

　　1936年与李洁莹结婚，婚后二人育有四子两女。

　　1940年懂化妆技巧的石坚正式投身演艺圈，起初曾为有“万能泰斗”之称的已故粤剧老倌薛觉先担任化妆师。该年石坚正式成为电影演员，在首部有份拍摄的间谍片《血海花》中扮演日本特务。

　　1949年获导演胡鹏邀请拍摄《黄飞鸿传》，于第一部黄飞鸿影片《鞭风灭烛》饰演黄飞鸿对头人角色，尽显反派本色，自此奠定“奸人坚”地位。在首二十年的电影生涯中，石坚多数被委以担当反派角色。当中最经典的除了《黄飞鸿》中的奸人坚外，于“如来神掌”中的天残脚，“方世玉”的对头人角色更是脍炙人口。其让人不寒而栗的招牌邪笑声更经常为后来电影中不少演员所仿效。1973年 ，更在李小龙电影《龙争虎斗》中，饰演大反派“韩先生”角色，石坚在片中尽显其武术功架，将北派武功呈现观众眼前，当中与李小龙的对垒更是精彩连连。

　　1975年进入无线电视担当艺员，《功夫热》为首部参与的电视剧，之后拍摄过《狂潮》、《倚天屠龙记》、《射雕英雄传之东邪西毒》等经典剧作。与电影时期相反，石坚在电视剧中大多饰演儒雅谦逊的慈祥长辈角色，尽显其真性情，例子包括《网中人》中的“龙冠三”、《亲情》中的“苏大鹏”、《流氓大亨》中的外公等。

　　1980年代初获邀接拍利口乐薄荷糖广告，为品牌成功塑造出个人形象，深入民心。

　　1992年石坚退出影坛，其现时最后一部影视作品，为专为石坚度身订造开拍的电影奸人世家，于1994年公演。

　　2007年1月至2月，香港电影资料馆举行“点止奸人咁简单——石坚”节目，放映十三出石坚成名电影作品。

　　2009年6月3日下午4时33分在伊利沙伯医院因心脏衰竭逝世，享寿97岁。

Shih Kien (Chinese: 石堅, 1 January 1913 – 3 June 2009), also known as Shek Wing-cheung, Sek Gin, or Shek Kin, was a Hong Kong–based Chinese actor and martial artist. He was born on January 1, 1913 in Shigang, Guangzhou, China and died on June 3, 2009 in Hong Kong.

Sek Kin began his career in the film industry in 1939 as a make-up artist. He made his acting debut in 1940 with the film "Flower in a Sea of Blood". In the 1950s and 1960s, he became well-known for his roles as villains in kung fu films. He appeared in many popular films of this era, including the "Wong Fei Hung" series, the "Fong Sai Yuk" series, and "Buddha's Palm".

In 1973, Sek Kin starred opposite Bruce Lee in the film "Enter the Dragon". He played the role of Han, the main villain of the film. Sek Kin's performance in "Enter the Dragon" was critically acclaimed and he is considered to be one of the greatest villains in kung fu cinema.

In the 1970s and 1980s, Sek Kin continued to act in both films and television series. He also began to work as a production manager on films. In 1996, he was honored with the Lifetime Achievement Award of the Hong Kong Film Critics' Association. In 2003, he was given the Professional Achievement Award at the Hong Kong Film Awards.

Sek Kin died on June 3, 2009 at the age of 96. He was a highly respected actor who made a significant contribution to the Hong Kong film industry. He is remembered for his iconic roles as villains in kung fu films and for his groundbreaking work in the early days of Hong Kong cinema.