But where have we got to in the different disputes? And are more strike dates upcoming?
Take a look at our guide below:
Staff wanted a higher pay offer than the 4% to 5% put on the table, as well as a reversal of the cuts to pensions that will see the average member lose 35% of their guaranteed future retirement income, according to the union.
But so far, their employers haven't budged.
On 20 April, staff decided to use a new tactic - boycotting marking and assessments until a better offer is made - and this action is ongoing.
Status of the dispute: Partially resolved
Future strike dates: 12, 13, 31 May and 3 June
The longest running of the disputes with government over pay and conditions falls to the railways - though with a mixture of staff and unions, some disputes have been settled while others roll on.
Signal workers and maintenance staff represented by the RMT voted in favour of an agreement with Network Rail in March for a 5% pay rise for last year and a 4% pay rise for next, backdated by three months.
However, train drivers represented by the Aslef union and other rail staff workers represented by the RMT have refused offers on the table from the Rail Delivery Group - representing the 14 train companies involved - as they would have to call off strike action before negotiations for the current year could take place.
Both unions have now confirmed fresh strike dates, clashing with the FA Cup final and the Eurovision Song Contest, and say they will carrying on their walk-outs until the pay offers reflect inflation and the rising cost of living.
Transport Secretary Mark Harper called the decision "deeply disappointing", especially in light of the song contest being held in Liverpool due to the war in Ukraine, accusing the unions of "targeting" those attending.
Status of the dispute: Unresolved
Future strike dates: 2, 3, 5, 6 and 10 May, and 7 June
The civil service covers a huge range of staff, from cleaners at departmental buildings through top officials in the Cabinet Office.
But a large number of them are unhappy about their pay, and have been staging strikes for months, from passport offices in Glasgow to border posts in Dover.
Whitehall has been told it can offer staff a 4.5% raise - with scope for an extra 0.5% "targeted at lower pay bands" if they deemed it necessary.
But unions criticised the lack of a one-off payment - as offered to those working in health and education - and said the offer was made in the absence of substantial talks.
Members of the Public and Commercial Services union have planned walk-outs until their ballot runs out at midnight on 6 May, with staff striking in passport offices, at the Department of Work and Pensions and within the Care Quality Commission.
But they are hoping to get approval from members for further industrial action, which could see the Border Force, DVLA are other civil service staff strike again.
The Prospect union, which represents "specialist, technical, professional, managerial and scientific staff in departments including the Met Office, the Health and Safety Executive and Natural England, are staging further walk-outs in May and June.
And the FDA union has decided to ballot its members to go on strike, with plans for a single national day of action.
Status of the dispute: Partially resolved
Future strike dates: Uncertain
The Communication Workers Union had been locked in a dispute with Royal Mail since last year, with members staging 18 days of strikes in the second half of 2022 over pay, jobs and conditions - hitting Christmas deliveries in particular.
Members were fighting proposed modernisation plans they claimed would "spell the end" of Royal Mail and wanted an improved pay deal on the "best and final" 9% offer they rejected last year.
The CWU secured a fresh mandate for more strikes but, after bringing in the conciliation service Acas and former TUC general secretary Sir Brendan Barber, the two sides reached an agreement in principle in April.
The executive of the union is now sharing the offer with its representatives before it is offered to members for a vote - so while the strikes are off for now, it may depend on the response of Royal Mail workers.
Status of the dispute: Resolved
Future strike dates: None
Back in January, the Fire Brigades Union (FBU) voted overwhelmingly for strike action, saying they had experienced more than a decade of real-terms pay cuts, and that the 2% pay rise on offer was not enough.
Had the strike gone ahead, it would have been the service's first national walk-out in 20 years.
But the offer jumped to 12% in March, and FBU members voted in favour of the deal, meaning the strike never went ahead.