Divisions Sidney Brownsberger (born September 20, 1845, Perrysburg, Ohio; died August 13, 1930, Fletcher, North Carolina) was an American Seventh-day Adventist educator and administrator.

Twelve years before Sidney was born, the family moved from southern Pennsylvania to Perrysburg, Ohio.

As a student he spent much of his spare time studying the Bible and the Adventist books he had acquired.

Agreeing with what he read, without ever having seen a Seventh-day Adventist, he began keeping the Sabbath alone during his junior year in college in 1868.

Looking back at those early years of struggling faith, he described the Holy Spirit striving with him telling him to stop trifling and be a man.

The following year (1873), Adventist church leaders invited him to head the fledgling school that had been established in Battle Creek, Michigan.

Brownsberger would later observe that Ellen White's educational principles were so far advanced that no one understood how to implement them.