Jenkin Whiteside (1772 – September 25, 1822) was an attorney who served as a United States Senator from Tennessee.
Jenkin Whiteside was born in Lancaster, Pennsylvania.
His father, Thomas Whiteside (1742–1823), was born in County Tyrone in Ulster and settled in the Province of Pennsylvania.
[1] Jenkin Whiteside studied the law in Pennsylvania and was admitted to the bar there.
In 1809, he was elected by the Tennessee General Assembly to replace Daniel Smith, who had resigned from the United States Senate, serving until his own resignation on October 8, 1811, when he resumed the practice of law.