Berkeley Lab Email Format

The most common Berkeley Lab email format is {f}{last}@lbl.gov (e.g. jdoe@lbl.gov), used in about 98% of observed Berkeley Lab work emails. Berkeley Lab uses 7 address formats in total.

Most likely format — based on 3,350 observed addresses

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Berkeley Lab email formats
98.3% of observed Berkeley Lab addresses use the {f}{last}@ format.
Email formatExampleShare
{f}{last}@lbl.gov
Examplejdoe@lbl.gov
Share98.3%
{first}{last}@lbl.gov
Examplejanedoe@lbl.gov
Share0.8%
{first}_{last}@lbl.gov
Examplejane_doe@lbl.gov
Share0.5%
{last}@lbl.gov
Exampledoe@lbl.gov
Share0.1%
{first}.{last}@lbl.gov
Examplejane.doe@lbl.gov
Share0.1%
{first}@lbl.gov
Examplejane@lbl.gov
Share0.1%
{first}{l}@lbl.gov
Examplejaned@lbl.gov
Share0.1%

Derived from 3,350 real observed addresses · data refreshed 2026-05-30. Role-based inboxes (info@, sales@, …) are excluded from format detection.

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Frequently asked questions
What is Berkeley Lab's email format?
The most common Berkeley Lab email format is {f}{last}@lbl.gov (for example jdoe@lbl.gov), used in about 98% of observed Berkeley Lab work addresses. Berkeley Lab also uses 6 other formats for name collisions.
How accurate is this Berkeley Lab email format?
This format is derived from 3,350 real Berkeley Lab addresses observed across our data, not guessed. To confirm a specific address, use the live verifier above — it checks deliverability in real time.
How do I find and verify a specific person's Berkeley Lab email?
Apply the most common pattern to the person's name (e.g. jdoe@lbl.gov), then verify it on this page — or use the Find tab to get the likely address from their name automatically.
What other email formats does Berkeley Lab use?
Beyond {f}{last}@lbl.gov, observed formats include {first}{last}@lbl.gov, {first}_{last}@lbl.gov, {last}@lbl.gov, {first}.{last}@lbl.gov, {first}@lbl.gov, {first}{l}@lbl.gov, in descending order of frequency.
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