Until 2023, only citizens were authorised to carry out fishing activities in Uganda. For the purposes of the OECD FDIRRI, it is assumed, by extension, that only companies owned by Ugandan citizens were eligible for fishing licenses.
In 2023, the Fisheries and Aquaculture Act of 2022 entered into force and repealed the previous Fish Act. The new Act does not contain any provision explictly prohibiting or restricting fishing activities by non-citizens. Hence, assuming no foreign ownership restrictions applies anymore.
"Part V - Licenses and Permits 
32. Prohibition of fisheries and aquaculture activities with licence or permit
A person shall not engage in any fisheries or aquaculture activity without the relevant Lcence or perntt lssued under thts Act
[...]
34. Fishing vessel licence
(1) A vessel shall not be used for lishrng unless– (a) the vessel is registered under the Inland Water Transport Act, 2021, and (b) there in in force, in respect of that vessel. a valid fishing vessel licence.
[...]
38. Prohibition of foreign fishing vessels
(1) A foreign fishing vessel shall not be used for commercial fishing in the waters of Uganda. 
[...]
45. Local fishing
Local fishing shall be regulated in accordance with the Local Governments Act, subuject to any restrictions imposed by the Chief Fisheries Officer as may be required to minimise threats to fisheries resources. 
[...]
Part VI - Regulation of Aquaculture [...]
62. Aquaculture activity licence
(1) A person shall not engage in an aquacultue activity without a valid liccence issued by the Chief Fisheries Oflicer in respect of that aquaculture activity under thts Part.
[...]
Part Xl  - Repeal, Savings and Transitional
123. Repeal of Cap. 197 [Fish Act] and Cap. 199
(1) The Frsh Act rs repealed [...]" (Fisheries and Aquaculture Act 2022)
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"PART Ill-REGISTRATION AND LICENSING 
7. Obligation to register a vessel 
A person who intends to employ a vessel in navigation of inland waterways or fly a Ugandan flag shall register the vessel with the Maritime Administration. 
[...]
22. Licensing of vessels to carry on business 
(1) A person who intends to use a vessel for trade in carriage of goods or passengers on inland waterways shall apply to the Maritime Administration for a licence. 
(2)  This section does not apply to fishing vessels.
23. Vessels eligible for application for a licence 
A vessel owned by–(a) the Government of Uganda; (b) a citizen of Uganda; (c) a company, organisation or partnership registered m Uganda; (d) an individual or company in possession of a vessel registered outside Uganda; or (e) an individual or corporation on bare boat charter in Uganda, is eligible to apply for a licence under section 22. [...]" (Inland Water Transport, 2021)
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Previously up to 2022
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"2. Interpretation
In this Act, unless the context otherwise requires— [...]
(b) "angling" means fishing for pleasure with a single rod, reel or line where any fish caught are not intended for sale or barter;
[...]
6. Restriction on fishing and processing of fish
(1) Any person who, without a valid specific licence issued for that purpose—
(a) engages in the processing of fish or any fish product in any prescribed place or area; or
(b) engages, in any prescribed place or area, in the marketing, purchase or sale of fish, 
commits an offence.
(2) No person who is not a citizen of Uganda shall fish in any waters of Uganda for the purpose of obtaining fish for sale unless he or she holds a valid specific licence issued for that purpose.
[...]
11. Restriction on noncitizens using vessels
(1) A person who is not a citizen of Uganda who, for the purposes of fishing, uses any vessel licensed under this Act unless he or she is in possession of a valid special licence commits an offence against this Act.
(2) It shall not be unlawful for a person who is not a citizen of Uganda to fish by angling or hand line from any vessel whether the vessel is licensed or not.
(3) Except as is permitted by subsection (2), any person, other than a person who is in possession of a valid angling licence, who fishes by angling in any waters of Uganda commits an offence. [...]"
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"2. Purpose.
The purpose of this Act is to repeal redundant business licences and to rationalise and simplify business licensing practices and procedures in order to eliminate multiplicity and overlap of business licences.
3. Repeals.
The enactments specified in column1 of the Schedule are amended to the extent specified in the corresponding entry in column 2.
SCHEDULE -  REPEALED ENACTMENTS
Column 1: Title of the Act | Column 2:  Extent of Amendment
[...]
The Fish Act, Cap.197 | Subsections (2) and (3) of section 11 are repealed [...]" (Business Licences (Miscellaneous Repeals) Act, 2015)
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"11. Dealings by non-citizens 
A non-citizen may engage in the marketing of fish or the purchase, sale, processing, canning or freezing of fish without a specific licence or permit for that purpose; except that the purchase of fish by a non-citizen without a licence or permit shall be permissible in the places and areas and in accordance with the conditions prescribed in Schedule 2.
PART IV—LICENCES, PERMITS AND FEES 
12. Fishing without licence or permit 
(1) A person shall not engage in any fishing activity without a licence or permit issued under these Rules by the Chief Fisheries Officer or an authorised licensing officer. 
(2) Fishing activity in subrule (1) means fishing, transportation of fish, artisanal processing of fish, fish processing, fish net manufacturing, boat building and  recreational fishing.
13. Application for licences and permits 
An application for a licence or permit under these Rules shall be in the form set in Schedule 3.
[...]
16. Certificate of vessel ownership and fishing vessel identification plate 
(1) A person issued with a fishing vessel licence under these Rules shall, together with the licence, be issued with— (a) a certificate of vessel ownership relating to that vessel; and (b) a fishing vessel identification plate. 
(2) A certificate of vessel ownership and a fishing vessel identification plate issued under subrule (1) shall meet the specifications set out in Schedule 5. 
(3) The fishing vessel identification plate issued under subrule (1) shall be displayed on the licensed vessel at all times.
[...]
SCHEDULE 2 Rule 11  - CONDITIONS OF PURCHASE OF FISH BY NON-CITIZEN.
A non-citizen may purchase fish without a specific licence or permit for that purpose anywhere in Uganda, if the purchase is made— 
(a) on behalf of a hotel, eating house or restaurant for consumption by a guest or customer;
(b) by an employer for consumption by his or her employees; or 
(c) by an individual for consumption by himself or herself or members of his or her family. [...]" (Fish (Fishing) Rules, 2010)
Fisheries and Aquaculture Act 2022
Inland Water Transport, 2021
Fish Act, 1970, as amended
Business Licences (Miscellaneous Repeals) Act, 2015
Fish (Fishing) Rules, 2010
[<a href="https://faolex.fao.org/docs/pdf/uga219095.pdf">Act</a>],[<a href="https://ulii.org/akn/ug/act/2021/18/eng@2021-10-01">Act</a>],[<a href="https://ulii.org/akn/ug/act/ord/1950/47/eng@2000-12-31">Act</a>],[<a href="https://ulii.org/akn/ug/act/2015/6/eng@2015-06-05">Act</a>],[<a href="https://ugandatrades.go.ug/media/S.I.%20No.%2033%20of%202010.pdf">Rules</a>],[<a href="https://fisheries.go.ug/?dad=info&jc=file&id=9">Rules</a>]