蒂克斯伯里战役是英格兰玫瑰战争期间的1471年5月4日发生在英格兰格洛斯特郡的蒂克斯伯里的一场战役。兰开斯特军由亨利六世的王后安茹的玛格丽特和威尔士亲王威斯敏斯特的爱德华及其盟友索默塞特公爵埃德蒙·博福特等率领，约克军由爱德华四世和其弟格洛斯特公爵理查（后来的理查三世）率领。双方军队人数和阵亡人数不明。

约克军在炮兵方面占优势，索默塞特也没能防住格洛斯特对其侧翼的袭击，狡猾的爱德华四世还安排了约200人的枪骑兵袭击兰开斯特军的后方。撤退的兰开斯特军陷入恐惧。在一处被称为“血腥草地”的战场，索默塞特的半数军队被杀，一些人逃往附近的蒂克斯伯里修道院。

The Battle of Tewkesbury, which took place on 4 May 1471, was one of the decisive battles of the Wars of the Roses. The forces loyal to the House of Lancaster were completely defeated by those of the rival House of York under their monarch, King Edward IV. The Lancastrian heir to the throne, Edward, Prince of Wales, and many prominent Lancastrian nobles were killed during the battle or were dragged from sanctuary two days later and immediately executed. The Lancastrian king, Henry VI, who was a prisoner in the Tower of London, died or was murdered shortly after the battle. Tewkesbury restored political stability to England until the death of Edward IV in 1483.