CIHT-FM (89.9 FM, "Hot 89.9") is a radio station licensed to Ottawa, Ontario, Canada.

The station was licensed by the CRTC in 2001, to broadcast a rhythmic contemporary/dance music format known as The Planet 89.9.

Both CIHT and CHBN-FM in Edmonton share the distinction of having been shifted from rhythmic contemporary to Top 40 in less than a year after their 2003 sign-ons.

Ottawa was the largest market Newcap owned radio stations until its expansion into Toronto and Vancouver in 2014, thanks to the purchase of five stations from a blind trust being run by Bell Media as part of their merger with Astral Media.

Even while they were the only English Top 40 station in Ottawa, it is one of the few Top 40 stations in Canada to continue supporting older music, making CIHT lean towards more of a hot adult contemporary direction than most Top 40 stations in Canada, but on March 31, 2014, CIHT picked up new competition with CKQB-FM's flip from active rock to a rhythmic-leaning CHR format, a move that prompted CIHT to back off from the hot AC fare and become more hit-driven with more currents.