J & J

J & J or J and J may refer to:


 * Johnson & Johnson, an American multinational medical devices, pharmaceutical and consumer packaged goods manufacturer
 * J & J Snack Foods, an American food and beverage manufacturing and marketing conglomerate
 * J & J Ultralights, an American ultralight aircraft manufacturer
 * Jaffa–Jerusalem railway, a railroad that connected Jaffa and Jerusalem
 * Jamie Noble and Joey Mercury, an American wrestling tag team known as J&J Security