| Vadasserikara | |
| Other Name: | Vadaseri illam |
| Settlement Type: | Town |
| Pushpin Map: | India Kerala#India |
| Pushpin Label Position: | left |
| Pushpin Map Caption: | Location in Kerala, India |
| Coordinates: | 9.3375°N 76.8278°W |
| Subdivision Type: | Country |
| Subdivision Name: |  India |
| Subdivision Type1: | State |
| Subdivision Name1: | Kerala |
| Subdivision Type2: | District |
| Subdivision Name2: | Pathanamthitta |
| Government Type: | Democratic |
| Governing Body: | Vadasserikkara grama panchayath |
| Unit Pref: | Metric |
| Area Total Km2: | 60.07 |
| Population Total: | 22577 |
| Population As Of: | 2001 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Malayalam, English |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Postal Code Type: | PIN |
| Postal Code: | 689662 |
| Area Code Type: | Telephone code |
| Area Code: | 04735 |
| Registration Plate: | KL-03, KL-62 |
| Blank1 Name Sec1: | Lok Sabha constituency |
| Blank1 Info Sec1: | Pathanamthitta |
Vadaserikara is a village in Pathanamthitta district, in the state of Kerala, India. It is one among the 11 villages in Ranni taluk with geographical area of 6007 hectares. The nearest railway station is chengannur located at a distance of [1] and sits at the confluence of the Pamba and Kallar River.
The village is located on the main trunk road to Sabarimala–the Pathanamthitta-Pampa Highway and is a stopover for pilgrims on the way to Sabarimala, the abode of Lord Ayyappa, a pilgrim centre that attracts millions of Ayyappa devotees. It lies from Kumplampoika and about from Ranni. The Pathanamthitta-Seethathodu road also pass through Vadasserikkara.
Marthoma Christians and Orthodox form the majority of the population. The village has seen much growth since the 1990s. One of the biggest bridges in the district is at Benglavkadavu.
India census, Vadaserikara had a population of 22,580 with 11,082 males and 11,498 females.