The Sure Thing is a 1985 American romantic comedy Christmas road film directed by Rob Reiner and starring John Cusack, Daphne Zuniga, Viveca Lindfors, and Nicollette Sheridan. The film chronicles the cross-country journey of college students Walter Gibson (Cusack) and Alison Bradbury (Zuniga) as they make their way from New England to Los Angeles over Christmas break, each in an effort to meet their ideal romantic match.

Released theatrically in the spring of 1985, The Sure Thing received mostly favorable reviews from film critics, who commended it for its traditional comedic structure, with some likening it to a modern version of Frank Capra's It Happened One Night (1934), though Reiner himself stated that the parallels between the two films were unintentional.