Stephen Livingstone Baldwin (simplified Chinese: 保灵; traditional Chinese: 保靈; Pinyin: Bǎolíng; Foochow Romanized: Bō̤-lìng; January 11, 1835 – July 28, 1902) was an American missionary to China by the Methodist Episcopal Church.

His ministerial life covered a period of forty-four years, half of which was spent at Fuzhou.

He arrived at Shanghai with Mrs. Baldwin in the latter part of 1858, and proceeded forthwith to his station at Fuzhou, which he reached early in 1859.

In the beginning of 1861, he left with his family for the United States on account of Mrs. Baldwin's health, but she died on the voyage.

Upon his return to the United States, he held several pastorates, and was for the last 14 years of his life, recording secretary of the Missionary Society of the Methodist Episcopal Church.