The Women's time trial of the 2018 UCI Road World Championships was a cycling event that took place on 25 September 2018 in Innsbruck, Austria.

It was the 25th edition of the event, for which Dutch rider Annemiek van Vleuten was the defending champion, having won in 2017.

[3] Van Vleuten became the first rider since Judith Arndt in 2012 to defend the world time trial title, finishing almost half a minute clear of her nearest rival.

[4] Just as she did in 2017, Anna van der Breggen won the silver medal, while a Dutch clean sweep of the podium placings was completed by the European champion,[5] Ellen van Dijk, a further 56.2 seconds behind van der Breggen.

[6] 52 cyclists from 34 nations took part in the women's time trial.