Tha Wung (Thai: ท่าวุ้ง, pronounced [tʰâː wúŋ]) is a district (amphoe) in western part of Lopburi province, central Thailand.

The district was created 1912, formerly named Pho Wi.

The main water resource of Tha Wung are the Lopburi and Bang Kham Rivers.

Neighbouring districts are (from the north clockwise) Ban Mi and Mueang Lopburi of Lopburi Province, Chaiyo of Ang Thong province and Phrom Buri and Mueang Sing Buri of Singburi province.

The district is divided into 11 sub-districts (tambons), which are further subdivided into 128 villages (mubans). Tha Wung has township (thesaban tambon) status and covers parts of tambon Tha Wung. Tha Khlong is another township which covers parts of tambon Khao Samo Khon. There are 10 tambon administrative organizations (TAO).

No. Name Thai name Villages Pop.      1. Tha Wung ท่าวุ้ง 12 5,253 2. Bang Khu บางคู้ 15 5,120 3. Pho Talat Kaeo โพตลาดแก้ว 10 4,830 4. Bang Li บางลี่ 16 5,312 5. Bang Nga บางงา 13 4,771 6. Khok Salut โคกสลุด 7 2,008 7. Khao Samo Khon เขาสมอคอน 13 7,015 8. Hua Samrong หัวสำโรง 15 6,927 9. Lat Sali ลาดสาลี่ 7 1,538 10. Ban Boek บ้านเบิก 11 5,431 11. Mutchalin มุจลินท์ 9 2,482