Tiedonantaja
| Type | Monthly newspaper |
|---|---|
| Format | tabloid |
| Publisher | Kustannusyhtiö TA-Tieto Oy |
| Editor-in-chief | Petra Packalén |
| Founded | 1968 |
| Political alignment | Marxist |
| Language | Finnish |
| Headquarters | Helsinki |
| Circulation | 6,000 (2010) |
| Sister newspapers | Arbetartidningen Enhet 1974–1988 |
| ISSN | 0356-1631 |
| Website | tiedonantaja.fi |
Tiedonantaja (Finnish pronunciation: [ˈtie̯donˌɑntɑjɑ], "Informant") is a Finnish leftist monthly newspaper published in Helsinki, Finland. It is the party organ of the new Communist Party of Finland (SKP).
Tiedonantaja's current editor-in-chief is Petra Packalén who was preceded by Marko Korvela (2012–2018) and Erkki Susi (1983–2012).