| Official Name: | Šajkaš |
| Settlement Type: | Village (Selo) |
| Pushpin Map: | Serbia Vojvodina#Serbia#Europe |
| Pushpin Label Position: | bottom |
| Subdivision Type: | Country |
| Subdivision Name: |  Serbia |
| Subdivision Type1: | Province |
| Subdivision Type2: | District |
| Subdivision Name2: | South Bačka District |
| Subdivision Type3: | Municipality |
| Subdivision Name3: | Titel |
| Unit Pref: | Metric |
| Area Total Km2: | 38.9 |
| Population As Of: | 2011 |
| Population Total: | 4374 |
| Population Density Km2: | auto |
| Timezone: | CET |
| Utc Offset: | +1 |
| Timezone Dst: | CEST |
| Utc Offset Dst: | +2 |
| Coordinates: | 45.2667°N 25°W |
| Elevation M: | 78 |
Šajkaš (; Hungarian: Sajkásszentiván) is a village located in the Titel municipality, South Bačka District, Vojvodina, Serbia. As of the 2011 census, it has a population of 4,374 inhabitants.
In Serbo-Croatian the village is known as Šajkaš (Шајкаш), in Hungarian as Sajkásszentiván, and in German as Schatzdorf or Schajkasch-Sentiwan.
The Šajkaška district was the scene of a notorious massacre during the occupation of Bačka by the Hungarian army in January 1942, which cost almost 900 lives. The German minority left the village in 1944.
As of the 2011 census, the village of Šajkaš has a population of 4,374 inhabitants.