霍华德·菲利普斯·洛夫克拉夫特（英语：Howard Phillips Lovecraft，1890年8月20日－1937年3月15日）是美国恐怖，科幻与奇幻小说作家，尤以其怪奇小说着称。

洛夫克拉夫特自称其写作的主题为“宇宙主义”，这一主题的基本概念就是：人类有限的的心智无法理解生命的本质，而宇宙对于人类来说是残酷陌生的。洛夫克拉夫特通过一系列围绕着非人诸神主题展开的关联松散的小说开发出了克苏鲁神话体系；同一时期他还在作品中设置出了《死者之书》，一本关于魔法仪式及失落知识的虚构魔法书。洛夫克拉夫特的作品大多包含悲观与愤世嫉俗的情感，与启蒙思想，浪漫主义以及基督教人文主义的价值观格格不入。

Howard Phillips Lovecraft (/ˈlʌvkræft, -ˌkrɑːft/; August 20, 1890 – March 15, 1937) was an American author who achieved posthumous fame through his influential works of horror fiction. Virtually unknown and only published in pulp magazines before he died in poverty, he is now regarded as one of the most significant 20th-century authors in his genre. Lovecraft was born in Providence, Rhode Island, where he spent most of his life. Among his most celebrated tales is "The Call of Cthulhu", canonical to the Cthulhu Mythos. Never able to support himself from earnings as author and editor, Lovecraft saw commercial success increasingly elude him in this latter period, partly because he lacked the confidence and drive to promote himself. He subsisted in progressively straitened circumstances in his last years; an inheritance was completely spent by the time he died at the age of 46.