《葛底斯堡演说》（英文：Gettysburg Address）是亚伯拉罕·林肯最著名的演说,也是美国历史上为人引用最多之政治性演说.在1863年11月19日,正值美国内战中葛底斯堡战役结束后四个半月,林肯在宾夕法尼亚州葛底斯堡的葛底斯堡国家公墓（Gettysburg National Cemetery）揭幕式中发表是之演说,哀悼在长达5个半月的葛底斯堡之役中阵亡的将士.林肯的演讲修辞细腻周密,其后成为美国历史上最伟大的演说之一.
当日视之为“葛底斯堡演说”者并非林肯总统的简短致词,而是艾佛瑞特长达两小时的演讲.艾佛瑞特这场今已罕闻之13,609字演讲其开头为：
‘立此晴空下,眺及四野,静谧自已逝年代之劳苦,伟大之阿尔根尼山脉耸立,隐朝我等,以及脚下诸同志安息之处；以我卑微之声破上天动人之岑寂,实感踌躇.然则奉各位之召,其责无可辞卸—其以尔之悲悯,应我祈求.’
"Standing beneath this serene sky, overlooking these broad fields now reposing from the labors of the waning year, the mighty Alleghenies dimly towering before us, the graves of our brethren beneath our feet, it is with hesitation that I raise my poor voice to break the eloquent silence of God and Nature. But the duty to which you have called me must be performed; — grant me, I pray you, your indulgence and your sympathy."
在两小时后,以此作结：
‘然我坚信,其将同我等齐声传颂,共禀烈士之骸：遍探已开化之世间,凡传颂此役赫赫功勋之处,下及信史之尽头,于我等共享之国,煌煌之史中,再无他页较葛底斯堡一役更为灿烂.’
"But they, I am sure, will join us in saying, as we bid farewell to the dust of these martyr-heroes, that wheresoever throughout the civilized world the accounts of this great warfare are read, and down to the latest period of recorded time, in the glorious annals of our common country, there will be no brighter page than that which relates The Battles of Gettysburg."