约翰·劳伦斯·席根塔勒（John Lawrence Seigenthaler，1927年7月27日－2014年7月11日） 是美国一位记者、作家。1949年进入《田纳西人》（The Tennessean）报社工作。1960年辞职担任美国总检察长罗伯特·肯尼迪的行政助理。1962年又回到《田纳西人》报社，先后担任编辑、发行人、主席，直到1991年退休。此外席根塔勒还担任过《今日美国》的编辑部主任。

2005年，有匿名用户在英语维基百科创建了席根塔勒称其与美国前总统约翰·肯尼迪及其弟罗伯特·肯尼迪之死有关（即席根塔勒传记事件）。该内容在4个月内无人修改。最终以席根塔勒出面接受采访、条目撰写者现身道歉而告终。这一事件一时间引起了对维基百科的争论和质疑。

John Lawrence Seigenthaler (/ˈsiːɡənθɔːlər/; July 27, 1927 – July 11, 2014) was an American journalist, writer, and political figure. He was known as a prominent defender of First Amendment rights.

Seigenthaler joined the Nashville newspaper The Tennessean in 1949, resigning in 1960 to act as Robert F. Kennedy's administrative assistant. He rejoined The Tennessean as editor in 1962, publisher in 1973, and chairman in 1982 before retiring as chairman emeritus in 1991. Seigenthaler was also founding editorial director of USA Today from 1982 to 1991. During this period, he served on the board of directors for the American Society of Newspaper Editors, and from 1988 to **** was its president.