Emerson Lane "Bud" Spencer (October 10, 1906 – May 15, 1985) was an American sprinter who won a gold medal in the 4 × 400 m relay at the 1928 Summer Olympics, breaking the world record in the process.

[3] In 1924, he was seriously injured in a traffic collision; he completely lost sight in one of his eyes and missed the 1925 track season.

[4][5] In 1926, Spencer won his first major title, the 1926 AAU junior championships in the 440 yd hurdles.

In May 1928 he set a world record in the 400 m at 47.0 s, but failed at the Olympic Trials and was only selected for the US team in the relay.

After retiring from competitions he worked as the sports editor of The San Francisco News and then as athletics coach at Stanford University, his alma mater.