1988年2月，佐佐木希出生于日本秋田县秋田市。秋田市山清水秀，气候宜人，从古至今就是日本美女辈出之地。高中毕业后，佐佐木希在秋田市的一家名叫“流行屋”的杂货店里当店员。

　　2005年，佐佐木希被日本漫画杂志举办的“日本全国寻找美女”活动的搜查员发掘，照片登上杂志封面后，一夜走红。此后，佐佐木希一直担任模特，是日本时尚杂志《Pinky》的专属模特。而且也是广告商及影视界的新秀。随着影坛处女作《变身西装》的上映，其人气也不断增长。

　　2010年，佐佐木希作为“最美丽面孔日本美女”入选美国电影网站“TC Candler”“2010年最美丽的脸100人”排行榜，排行第三十三位，并且被誉为“美国人最喜欢的日本第一纯情美少女”。

　　2011年，《日经杂志》评选出日本20名最美女优，佐佐木希排行第一位。此后，佐佐木希成为“日本美少女”的代表。同年，佐佐木希再次入选美国电影网站“TC Candler”“2011年最美丽的脸100人”排行榜，排行七十一位，仍然名列日本第一位。2012年，在影片《痞子田中》中担任演员。

Nozomi Sasaki (佐々木 希, Sasaki Nozomi, February 8, 1988), previously known simply as Nozomi, is a Japanese actress and model. She has the same maiden name. Her real name is Nozomi Watabe (渡部 希). She is from Akita City, Akita Prefecture. Her husband is comedian and television presenter Ken Watabe, part of the duo Un-Jash.

*** Not to be confused with voice actress of the same name, Nozomi Sasaki (ささき のぞみ).

In the past fifteen years Nozomi Sasaki has gone from an unknown quantity to something of a phenomenon thanks to her physical attributes and talent. She has leveraged the adoring looks of the fans, commentators and advertisers to a career in big screen films, TV serials, endless number of commercial work, Public relations assignments, photo books, music albums and adult (gravure) and fashion modelling. Sasaki was born in the northern prefecture of Akita and proudly carried the local dialect 'akitaben' as she began modelling at the age of fourteen and all the way through her becoming a popular name. Speaking of which, she has often chosen to stylize her name simply as Nozomi. She is often featured within or on the cover of magazines with fans praising her slim build, legs, eyes and smile. After dating several celebrities, including a member of the boy band Arashi, Nozomi Sasaki announced her engagement to comedian Watabe Ken on NTV's live variety program Gyoretsu No Dekiru Horitsu Sodanjo on April 9 of 2017. The couple had been dating for two years. They subsequently married in April 2017. She gave birth to a boy in September 2018. Subsequently multiple reports emerged of his cheating during their courtship and subsequently. She is signed to the Top Coat Group agency.