Named after Sir Henry Ryder Haggard (1856-1925), a popular novelist who, in July 1916, travelled from Vancouver to Edmonton along this line when it was the old Grand Trunk Pacific Railway, which the mountain overlooks.

It is not clear why Sir Haggard’s name would have been used, nor is it clear whether the GTP station here (known as Knole until 1916, then renamed Rider) was named in association with the mountain, or vice versa. See Mount Rider.