John Loveday

John Loveday may refer to:
 * John Loveday, the eponymous trumpet major of Thomas Hardy's 1880 novel The Trumpet-Major
 * John Loveday (antiquary) (1711–1789), English antiquarian
 * John Loveday (rugby union) (born 1949), New Zealand rugby union player
 * John Loveday (physicist), experimental physicist