La Brassiere (simplified Chinese: 绝世好Bra; traditional Chinese: 絕世好Bra) is a 2001 Hong Kong romantic comedy film starring Lau Ching-wan, Louis Koo, Carina Lau and Gigi Leung.

The film's underlying plot is to create the "ultimate brassiere" for a Japanese company specialising in this undergarment, hence the fanciful title.

Samantha (Carina Lau), who is managing the Hong Kong subsidiary of the company, is the project leader of this assignment and she appoints two zany but highly creative designers to aid her in that project, Wayne (Louis Koo) and Johnny (Lau Ching-wan).

Apparently, Wayne and Johnny being both male were unable to realise the finer points of creating the undergarment.

Lena (Gigi Leung), a lover of Wayne and also working on the project then got the inspiration that the "ultimate bra" is the one which incorporates the feeling a woman has when her male lover lovingly supports her breasts.