Preston Crowmarsh

{{Use dmy dates|date=August 2015}}

{{Use British English|date=August 2015}}

{{infobox UK place|

|country= England

|static_image=Thatched cottage at Preston Crowmarsh, Oxfordshire.jpg

|static_image_caption=Cottages in Preston Crowmarsh

|coordinates = {{coord|51.613|-1.111|display=inline,title}}

|official_name= Preston Crowmarsh

|population=

|population_ref=

|civil_parish= Benson

|shire_district= South Oxfordshire

|shire_county= Oxfordshire

|region= South East England

|constituency_westminster= Henley

|post_town= Wallingford

|postcode_district= OX10

|postcode_area= OX

|dial_code= 01491

|os_grid_reference= SU616908

|website= [http://www.parish-council.com/Benson/ Benson Parish Council]

}}

Preston Crowmarsh is a hamlet in Benson civil parish in South Oxfordshire. It is on the River Thames {{convert|1|mi|km}} north of Wallingford. The river can be crossed on foot here at Benson Lock.