John K. Smith (c. 1805–1845) was an American pharmacist and businessman. He founded the pharmaceutical company John K. Smith & Co., which became a part of Smith, Kline and French and GlaxoSmithKline.
Smith trained as a druggist, and joined his brother-in-law, John Gilbert, in 1830 to open a dispensing chemist at 296 North Second Street in Philadelphia.[1] Together they sold drugs, paints, varnish, chemicals and window glass.[1]
When John K. Smith retired, the business was taken over by his son, George K. Smith, who expanded it into a large international business.[1]
John K. Smith died in 1845[1] and was interred at Laurel Hill Cemetery.[2]