Timeliner is a 1955 science fiction novel by British writer Charles Eric Maine.

It was first published in the UK by Hodder & Stoughton; a paperback version by Bantam Books appeared the following year.

The story was originally written as a radio play called The Einstein Highway and was broadcast on the Light Programme of the BBC on 21 February 1954.

A scientist working with "dimensional quadrature" is flung forward in time, to a period where his consciousness ousts that of another man.

Damon Knight wrote of the novel:[2] Timeliner, by Charles Eric Maine, is that sort of amateur flight of fancy that takes leave of its premises, and its senses, in the second chapter.