The UK short-term work visas are all part of the Tier 5 Visas, part of the UK Point Based System. The main categories of these visas, also known as the UK Temporary Workers Visas, are as follows:
UK Charity Worker visa (Tier 5):
To be eligible, Charity Worker visa you must: have a certificate of sponsorship reference number from your UK sponsor, have enough money to support yourself in the UK - you’ll usually need to have at least £1,270 available (unless you’re exempt) be 18 or over when you apply
UK Creative and Sporting visa (Tier 5):
To be eligible, you must have been offered work in the UK as a sports person or creative worker. The main criteria include the possession of a certificate of sponsorship from a licensed employer in UK.
UK Government Authorized Exchange visa (Tier 5)
To be eligible, you would have been offered visa to come to the UK for work experience or to do training, an Overseas Government Language Program, research or a fellowship through an approved government authorized exchange scheme.
UK International Agreement visa (Tier 5):
To be eligible, you would have been are contracted to work for a foreign government or as a private servant in a diplomatic household in the UK.
UK Religious Worker visa:
To be eligible, you are coming to the UK for a short-term in order to do religious work in a non-pastoral role, such as preaching or working in a religious order, you can apply for this visa. This visa has replaced the T5 (Temporary Worker) Religious Worker visa.
UK Seasonal Worker Visa (Tier 5):
To be eligible, you have applied for a Seasonal work in edible horticulture for up to 6 months, poultry work and drive heavy goods (HGVs) for up to 6 months.