| Kalthodu | |
| Settlement Type: | Village |
| Pushpin Label Position: | right |
| Pushpin Map Caption: | Location in Karnataka, India |
| Subdivision Type: | Country |
| Subdivision Type1: | State |
| Subdivision Name1: | Karnataka |
| Subdivision Type2: | District |
| Subdivision Name2: | Udupi |
| Parts Type: | Taluk |
| Parts: | Kundapura |
| Unit Pref: | Metric |
| Population Total: | 5172 |
| Population As Of: | 2011 |
| Population Density Km2: | auto |
| Demographics Type1: | Languages |
| Demographics1 Title1: | Official |
| Demographics1 Info1: | Kannada, Konkani |
| Timezone1: | IST |
| Utc Offset1: | +5:30 |
| Registration Plate: | KA |
Kalthodu is a village in the Byndoor taluk of Udupi district. The village was previously part of the Kundapura taluk. As of 2011, Kalthodu has a total population of 5172 people consisting of 2820 male and 539 female residents. The village occupies a total area of 4212.71 hecatres with a population density of 1.228 people per hectare. As of 2011, the total literacy rate was 66.57% which was higher than the national average of 59.5%.[1]
As of 2011, Kalthodu has an employment rate of over 52.11%, 70.17% of whom are employed over 183 days in a year.
In 2022, a school girl was washed away by a swollen stream while crossing a wooden footbridge near Kalthodu which brought to light the lack of infrastructure in the village.[2]