Il letto in piazza

{{Infobox film

| name =Il letto in piazza

| image = Il letto in piazza.jpg

| caption =

| director = Bruno Gaburro

| writer =

| starring =

| music = Guido & Maurizio De Angelis

| cinematography = Fausto Zuccoli

| editing =

| producer =

| released = {{Film date|1976}}

| country = Italy

| language = Italian

}}

Il letto in piazza (also known as Sex Diary) is a 1976 Italian comedy film written and directed by Bruno Gaburro. It is based on the novel with the same name written by Nantas Salvalaggio.{{cite book|author1=Roberto Chiti |author2=Roberto Poppi |author3=Enrico Lancia |title=Dizionario del cinema italiano: I film|publisher=Gremese, 1991|isbn=8876059350}}{{cite book|last=Marco Giusti|title=Dizionario dei film italiani stracult|year=1999|publisher=Sperling & Kupfer|isbn=8820029197}}