---

---

# Exhibit 12.1

# CERTIFICATION

I, Dan Haran, certify
that:

I have reviewed this annual report
on Form 20-F of Cimatron Ltd.;

| | Based on
my knowledge, this report does not contain any untrue statement of a material fact or
omit to state a material fact necessary to make the statements made, in light of the
circumstances under which such statements were made, not misleading with respect to the
period covered by this report;
| | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | Based
on my knowledge, the financial statements, and other financial information included in
this report, fairly present in all material respects the financial condition, results of
operations and cash flows of the company as of, and for, the periods presented in
this report;
| | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | The companys
other certifying officer(s) and I are responsible for establishing and maintaining
disclosure controls and procedures (as defined in Exchange Act Rules 13a-15(e) and
15(d)-15(e)) for the company and have:
| | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | (a) | Designed
such disclosure controls and procedures, or caused such disclosure
                    controls and procedures to be designed under our supervision, to
ensure that                     material information relating to the company, including
its consolidated                     subsidiaries, is made known to us by others within
those entities, particularly                     during the period in which this report
is being prepared;
| | --- | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | (b) | Evaluated
the effectiveness of the companys disclosure controls and
                    procedures and presented in this report our conclusions about the
effectiveness                     of the disclosure controls and procedures, as of the
end of the period covered                     by this report based on such evaluation;
and
| | --- | --------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | (c) | Disclosed
in this report any change in the companys internal control over
                    financial reporting that occurred during the period covered by the
annual report                     that has materially affected, or is reasonably likely
to materially affect, the                     companys internal control over
financial reporting; and
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | The
companys other certifying officer(s) and I have disclosed, based on our most recent
evaluation of internal control over financial reporting, to the companys
auditors and the audit committee of the companys board of directors (or
persons performing the equivalent functions):
| | -----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------



---

---



| | (a) | All
significant deficiencies and material weaknesses in the design or operation
                    of internal control over financial reporting which are reasonably
likely to                     adversely affect the companys ability to record,
process, summarize and                     report financial information; and
| | --- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

| | (b) | Any
fraud, whether or not material, that involves management or other employees
                    who have a significant role in the companys internal control
over                     financial reporting.
| | --- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------

Date: June 29, 2006

| |  | /s/ Dan Haran
Dan HaranPresident and Chief Executive Officer
| |  | --------------------------------------------------------------------------



---

---